Materiały źródłowe

• #1 Heat rash | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/heat-rash

  Heat rash develops when a duct that leads from a sweat gland to the surface of the skin is blocked or inflamed. This then blocks the opening of the sweat duct on the surface of the skin (sweat pore). Instead of evaporating, sweat is trapped beneath the skin, causing irritation and bumps on the skin. […] A type that occurs deeper in the skin is called miliaria rubra. It is sometimes called prickly heat. Signs and symptoms include small, inflamed blister-like bumps and itching or prickling in the affected area.

• #2 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Miliaria, also known as eccrine miliaria, is a common skin condition caused by the blockage of eccrine sweat glands and ducts. This obstruction leads to the backflow of eccrine sweat into the dermis or epidermis, resulting in a rash characterized by sweat-filled vesicles under the skin. […] The primary cause of miliaria is the obstruction of eccrine sweat glands or ducts, resulting from cutaneous debris or bacteria, such as Staphylococcus epidermidis, which forms biofilms. This obstruction causes sweat to leak into the epidermis or dermis, leading to cellular overhydration, swelling, and further duct occlusion. […] Although miliaria affects all age groups, ethnicities, and both genders equally, infants and children are at higher risk due to the immaturity of their eccrine ducts. Sweating is the most common risk factor, making hot or humid conditions and high fevers particularly associated with the development of miliaria.

• #3 Heat Rash Prickly Heat (Sweat Rash) Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/22440-heat-rashprickly-heat

  A heat rash (prickly heat) can form on your skin when sweat gets trapped under the surface. […] Heat rash looks red on lighter skin but may look white or gray on darker skin. […] A heat rash is a group of tiny bumps, similar to pimples or blisters. […] Sweat thats trapped within your skin causes a heat rash. […] A clog can happen if: Too much sweat builds up between your skin and your clothing and/or: Dead skin cells (corneocytes) build up in your pores or sweat ducts. […] You may be more likely to develop a heat rash if you: Do intense physical activity, especially in the heat; Have a fever; Have a condition that makes you sweat more than expected (hyperhidrosis); Live in a hot or humid climate; Need bedrest for a while; Take medications that make your sweat glands more active; Wear tight clothing when working out or in warm environments. […] Babies, infants and toddlers have a higher risk because their sweat glands and ducts are still growing, and their bodies may not control their temperatures as well as adults do. […] Its possible for heat rash to lead to a bacterial skin infection. […] Sweat needs to come out.

• #4 Heat rash | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/heat-rash

  Heat rash develops when a duct that leads from a sweat gland to the surface of the skin is blocked or inflamed. This then blocks the opening of the sweat duct on the surface of the skin (sweat pore). Instead of evaporating, sweat is trapped beneath the skin, causing irritation and bumps on the skin. […] A type that occurs deeper in the skin is called miliaria rubra. It is sometimes called prickly heat. Signs and symptoms include small, inflamed blister-like bumps and itching or prickling in the affected area.

• #5 Heat Rash (Prickly Heat): Causes, Symptoms, and Treatment

  https://www.webmd.com/skin-problems-and-treatments/understanding-heat-rash-basics

  A heat rash is a common rash on the skin that can show up when you’re hot or you sweat a lot. It can make parts of your skin feel prickly or sting due to overheating. It can itch a lot, but it’s not dangerous. […] Heat rash happens when the ducts beneath your skin that transport your sweat get clogged up. The sweat can’t get through the pores in your skin, and it causes your skin to get irritated. Then a rash develops. […] This is most often caused by: Small pieces of dead skin cells getting trapped in your pores, Sweat collecting between your skin and your clothing, Hair follicles blocking your sweat glands, Hormonal changes, like having your period, Not enough airflow between your skin and clothing.

• #6 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Miliaria, also known as eccrine miliaria, is a common skin condition caused by the blockage of eccrine sweat glands and ducts. This obstruction leads to the backflow of eccrine sweat into the dermis or epidermis, resulting in a rash characterized by sweat-filled vesicles under the skin. […] The primary cause of miliaria is the obstruction of eccrine sweat glands or ducts, resulting from cutaneous debris or bacteria, such as Staphylococcus epidermidis, which forms biofilms. This obstruction causes sweat to leak into the epidermis or dermis, leading to cellular overhydration, swelling, and further duct occlusion. […] Although miliaria affects all age groups, ethnicities, and both genders equally, infants and children are at higher risk due to the immaturity of their eccrine ducts. Sweating is the most common risk factor, making hot or humid conditions and high fevers particularly associated with the development of miliaria.

• #7 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #8 Prickly Heat Rash: Causes, Symptoms, Treatments

  https://www.healthline.com/health/prickly-heat

  Miliaria rubra is a type of heat rash or prickly heat that happens when sweat becomes trapped under the skin. […] Prickly heat rashes result from trapped sweat. This can happen due to: hot, humid weather, prolonged exercise, fever, wearing synthetic clothing that doesn’t allow sweat to evaporate, excessive sweating due to certain medications, laying for too long on a damp mattress with a waterproof cover, such as while hospitalized. […] When you sweat more than usual, your glands can become overwhelmed. The sweat ducts may become blocked, trapping the sweat deep underneath your skin. Sweat can also permeate the upper layers of the skin, becoming trapped beneath the epidermis. […] Prickly heat, or miliaria rubra, is a type of heat rash that develops when sweat becomes trapped in the skin, usually around the skin folds. Its typically caused by sweating, whether from being in a hot, humid climate, engaging in intense exercise, or due to another reason.

• #9 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  The main cause of miliaria is the obstruction of eccrine sweat glands or ducts. This obstruction can result from cutaneous debris or bacteria, such as S epidermidis, which forms biofilms. […] The different types of miliaria involve varying depths of cutaneous obstruction. Miliaria crystallina occurs with ductal occlusion in the stratum corneum; miliaria rubra involves ductal occlusion in the epidermis at the subcorneal layers; and miliaria profunda results from ductal occlusion at the dermal-epidermal junction, specifically within the papillary dermis.

• #10 Heat Rash (Prickly Heat): Symptoms, Causes, and Treatment

  https://patient.info/skin-conditions/sun-and-sunburn/prickly-heat-and-heat-rash-miliaria

  Heat rash is one of the most common types of the skin rash, and it’s also known as miliaria, prickly heat, or a sweat rash. […] Heat rash or prickly heat (miliaria) is due to blockage of sweat ducts. […] Some people are more prone to heat rash (miliaria) than others. […] It seems that a germ (bacterium) called Staphylococcus epidermidis may play a role. […] Anything else that blocks the sweat ducts can also cause miliaria.

• #11 Prickly heat (heat rash): Images, treatment, causes, and more

  https://www.medicalnewstoday.com/articles/319612

  Certain medications can also trigger prickly heat. Any drugs that raise the body temperature or alter the function of the sweat glands can increase the risk of prickly heat. […] A study in JAMA Dermatology noted that prickly heat developed where the bacteria Staphylococcus were found. These bacteria are normal, but the biofilm they produce can block sweat ducts and contribute to skin conditions. This would suggest that people with Staphylococcus on their skin may be more prone to prickly heat than others.

• #12 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  The main cause of miliaria is the obstruction of eccrine sweat glands or ducts. This obstruction can result from cutaneous debris or bacteria, such as S epidermidis, which forms biofilms. […] The different types of miliaria involve varying depths of cutaneous obstruction. Miliaria crystallina occurs with ductal occlusion in the stratum corneum; miliaria rubra involves ductal occlusion in the epidermis at the subcorneal layers; and miliaria profunda results from ductal occlusion at the dermal-epidermal junction, specifically within the papillary dermis.

• #13 Eccrine miliaria (miliaria) – UpToDate

  https://www.uptodate.com/contents/eccrine-miliaria-miliaria

  „Miliaria” is the general term used to describe conditions caused by blockage within the sweat duct. Eccrine miliaria is a common, transient cutaneous disorder caused by blockage within the eccrine sweat duct. It is also known as „sweat rash,” „prickly heat,” or „heat rash.” […] There are three main types of eccrine miliaria (crystallina, rubra, and profunda), which are distinguished by clinical appearance as well as histologic findings. The type of miliaria that develops depends upon the level at which the duct is blocked. […] Miliaria crystallina – Occurs when the duct is blocked superficially, within or close to the stratum corneum. […] Miliaria rubra – Occurs when the duct is blocked deeper in the epidermis.

• #14 Eccrine miliaria (miliaria) – UpToDate

  https://www.uptodate.com/contents/eccrine-miliaria-miliaria

  „Miliaria” is the general term used to describe conditions caused by blockage within the sweat duct. Eccrine miliaria is a common, transient cutaneous disorder caused by blockage within the eccrine sweat duct. It is also known as „sweat rash,” „prickly heat,” or „heat rash.” […] There are three main types of eccrine miliaria (crystallina, rubra, and profunda), which are distinguished by clinical appearance as well as histologic findings. The type of miliaria that develops depends upon the level at which the duct is blocked. […] Miliaria crystallina – Occurs when the duct is blocked superficially, within or close to the stratum corneum. […] Miliaria rubra – Occurs when the duct is blocked deeper in the epidermis.

• #15 Miliaria – Wikipedia

  https://en.wikipedia.org/wiki/Miliaria

  Miliaria rubra is also known as prickly heat and heat rash. […] The most severe form of miliaria, miliaria profunda, sometimes referred to as „wildfire” due to the rapid spread and severe burning sensations, generally occurs as a complication of repeated episodes of miliaria rubra. […] Miliaria pustulosa describes pustules due to inflammation and bacterial infection. […] Postmiliarial hypohidrosis is a skin condition that results from occlusion of sweat ducts and pores, and may be severe enough to impair an individual’s ability to perform sustained work in a hot environment. […] Tropical anhidrotic asthenia is a skin condition, a rare form of miliaria, with long-lasting poral occlusion, which produces anhidrosis and heat retention. […] Occlusion miliaria is a skin condition that is accompanied by anhidrosis and increased heat-stress susceptibility, all after the application of extensive polyethylene film occlusion for 48 hours or longer.

• #16 Heat rash: Symptoms, treatment, appearance, and causes

  https://www.medicalnewstoday.com/articles/181512

  Heat rash, or miliaria, happens when sweat gland ducts become blocked. […] This may be due to: […] sweat glands still developing, as in newborns […] a hot and humid environment […] physical activity […] a fever […] wearing synthetic fabrics close to the skin […] wearing a nonporous bandage […] prolonged bed rest […] the use of some medications, especially those that reduce sweating […] radiation therapy […] some health conditions, such as toxic epidermal necrolysis.

• #17 Prickly Heat | UMass Memorial Health

  https://www.ummhealth.org/health-library/prickly-heat

  Prickly heat is a skin rash caused by sweat trapped in the skin. […] The condition is caused by narrowed or clogged sweat ducts. This may be because of things that cause sweating, such as: Hot, humid weather. […] The rash usually goes away on its own when sweating is prevented. […] The condition is caused by narrowed or clogged sweat ducts. This may be from things that cause sweating, such as hot, humid weather or physical activity.

• #18 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #19 Heat Rash – International Hyperhidrosis Society | Official Site

  https://www.sweathelp.org/home/heat-rash.html

  Heat rash (also called prickly heat) can strike when sweat gets trapped under the skin, especially when the weather is hot and humid. […] Heat rash occurs when sweat becomes trapped under the surface of the skin. Seeping into nearby tissue, the sweat can then lead to tiny pockets of swelling which cause a tell-tale rash and, sometimes, little blisters. […] Heat rash is more common in babies and young children because their sweat ducts are not yet fully developed and can easily be disrupted. […] Among adults, heat rash often shows up while on a trip to a warmer, more humid location (humidity causes increased sweating), with sudden weather changes, or if you’re doing activities that cause you to sweat more than normal (like exercising or working in hotter temperatures). […] Tight bandages, medication patches, or constricting clothes can also increase risks of localized heat rash.

• #20 Prickly heat (heat rash): symptoms, treatment, and prevention – Maple

  https://www.getmaple.ca/blog/prickly-heat-heat-rash-symptoms-treatment-and-prevention/

  Additionally, being overweight or obese may amplify your chances of experiencing the condition. This is due to the rolls of skin these individuals are more likely to have. […] When your body cant expel your sweat properly through your sweat ducts, it becomes trapped in your skin. […] Another common cause of heat rash is travelling to a hot and humid climate. […] While anything that obstructs the sweat glands can trigger heat rash, certain causes are especially notable. […] A big one tends to be wearing constricting or synthetic fabrics that dont allow for air flow especially during high-intensity exercise. […] Prolonged bed rest is another as bedding can function as a barricade blocking your bodys sweat glands.

• #21 Heat Rash Prickly Heat (Sweat Rash) Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/22440-heat-rashprickly-heat

  A heat rash (prickly heat) can form on your skin when sweat gets trapped under the surface. […] Heat rash looks red on lighter skin but may look white or gray on darker skin. […] A heat rash is a group of tiny bumps, similar to pimples or blisters. […] Sweat thats trapped within your skin causes a heat rash. […] A clog can happen if: Too much sweat builds up between your skin and your clothing and/or: Dead skin cells (corneocytes) build up in your pores or sweat ducts. […] You may be more likely to develop a heat rash if you: Do intense physical activity, especially in the heat; Have a fever; Have a condition that makes you sweat more than expected (hyperhidrosis); Live in a hot or humid climate; Need bedrest for a while; Take medications that make your sweat glands more active; Wear tight clothing when working out or in warm environments. […] Babies, infants and toddlers have a higher risk because their sweat glands and ducts are still growing, and their bodies may not control their temperatures as well as adults do. […] Its possible for heat rash to lead to a bacterial skin infection. […] Sweat needs to come out.

• #22 When Your Child Has Heat Rash (Prickly Heat)

  https://umcno.staywellsolutionsonline.com/Wellness/Nutrition/3,89381

  Heat rash is caused by blocked sweat glands. This can happen when your child: […] Is exposed to too much sun or heat […] Is overdressed (wearing too many layers of clothing) […] Engages in intense exercise or physical activity.

• #23 Heat rash: Symptoms, treatment, appearance, and causes

  https://www.medicalnewstoday.com/articles/181512

  Heat rash, or miliaria, happens when sweat gland ducts become blocked. […] This may be due to: […] sweat glands still developing, as in newborns […] a hot and humid environment […] physical activity […] a fever […] wearing synthetic fabrics close to the skin […] wearing a nonporous bandage […] prolonged bed rest […] the use of some medications, especially those that reduce sweating […] radiation therapy […] some health conditions, such as toxic epidermal necrolysis.

• #24 Heat rash: How to spot it and what to do – Harvard Health

  https://www.health.harvard.edu/blog/heat-rash-how-to-spot-it-and-what-to-do-202308182968

  Heat rash is also known as miliaria or prickly heat. It is caused when ducts from eccrine sweat glands that lead to the skin’s surface are blocked or inflamed. […] Sweat ducts may get blocked when you sweat excessively in hot temperatures, particularly if skin folds or tight-fitting clothes hinder their function. […] Heat rash can occur any time the body sweats, so it is common in hot, humid climates, during hospitalizations, from fever, and during exercise.

• #25 Heat rash (prickly heat)

  https://www.nhs.uk/conditions/heat-rash-prickly-heat/

  Heat rash is usually caused by sweating a lot. […] Sweat glands get blocked and the trapped sweat leads to a rash developing a few days later. […] Babies often get heat rash because they cannot control their temperature as well as adults and children can.

• #26 Heat rash – treatments, symptoms and causes | healthdirect

  https://www.healthdirect.gov.au/heat-rash

  Heat rash happens when your sweat glands become blocked. […] Heat rash is caused by blockage of sweat glands during times of high heat or humidity, causing itching or prickling of the skin. […] Heat rash happens when your sweat ducts become blocked or inflamed due to heat and high humidity. […] It is common in newborn babies as their sweat glands haven’t developed properly yet. […] You are more likely to get heat rash if you: are getting used to warmer temperatures, wear too many clothes in warmer temperatures, lie in bed for long periods of time, especially if you have a fever (high temperature).

• #27 Heat rash (prickly heat) | nidirect

  https://www.nidirect.gov.uk/conditions/heat-rash-prickly-heat

  Heat rash is usually caused by excessive sweating. […] Sweat glands get blocked and the trapped sweat leads to a rash developing a few days later. […] Babies often get it because they can’t control their temperature as well as adults and children can.

• #28

  https://www.healthychildren.org/English/ages-stages/baby/bathing-skin-care/Pages/Heat-Rash.aspx

  Heat rash, or miliaria, is a skin condition that happens mostly in babies and young children. […] Heat rash develops when the openings of sweat glands become blocked. This causes sweat to be trapped underneath the skin. […] Heat rash is very common in the first few weeks of life. It often develops in hot and humid conditions, especially if a child is wearing tighter clothing.

• #29 Heat rash: Symptoms, treatment, appearance, and causes

  https://www.medicalnewstoday.com/articles/181512

  Heat rash, or miliaria, happens when sweat gland ducts become blocked. […] This may be due to: […] sweat glands still developing, as in newborns […] a hot and humid environment […] physical activity […] a fever […] wearing synthetic fabrics close to the skin […] wearing a nonporous bandage […] prolonged bed rest […] the use of some medications, especially those that reduce sweating […] radiation therapy […] some health conditions, such as toxic epidermal necrolysis.

• #30 Heat Rash: Treatment, Symptoms, Causes, and More

  https://www.healthline.com/health/heat-rash-pictures-remedies

  Heat rash occurs when pores become clogged and cant expel sweat. This is more likely to happen in warmer months or climates, or after intense exercise. […] Wearing certain types of clothing can trap sweat, leading to heat rash. Using thick lotions and creams can also lead to heat rash. […] It’s possible to get heat rash in cooler temperatures if you wear clothes or sleep under covers that lead to overheating. Babies are more likely to develop heat rash because their pores are underdeveloped. […] Friction on the surface of the skin often causes heat rash. Adults usually develop heat rash on the parts of their bodies that rub together, like between the inner thighs or under the arms. Babies often develop heat rash on their necks, but it can also develop in skin folds like those of the armpits, elbows, and thighs.

• #31 Heat Rash

  https://www.seattlechildrens.org/conditions/a-z/heat-rash/

  Heat rash is caused by blocked-off sweat glands. […] Hot, humid weather can cause the sweat glands to be overworked. […] Babies can also get it in the wintertime from ointments put on the skin. Reason: ointments can block off sweat glands. […] Heat rash of the forehead can be caused by oil or ointment on the hair. Heat rash of the face of a breastfed baby can be caused by lanolin put on the nipples. Heat rash of the chest can be caused by menthol ointments put on for coughs. […] Older children can get heat rash with hard exercise. […] Heat rash is caused by blocked-off sweat glands.

• #32 Heat (Prickly) Rash: Pictures and Quick Treatment

  https://www.verywellhealth.com/heat-rash-8627853

  Miliaria profunda causes a heat rash that occurs deep into the skin layers and occurs frequently (chronic). […] Heat rash is a preventable condition. During the summer months, you can reduce your risk by staying cool and hydrated, avoiding exercise in hot, humid weather, and keeping your skin clean and free of creams and ointments.

• #33 Heat Rash Photos, Symptoms, Cream, Treatments, Prevention

  https://www.medicinenet.com/heat_rash/article.htm

  A heat rash occurs when sweat ducts become clogged and the sweat cannot get to the surface of the skin. Instead, it becomes trapped beneath the skin’s surface causing a mild inflammation or rash. […] It is uncertain why some people get heat rashes and others don’t. The sweat gland ducts can become blocked if excessive sweating occurs and sweat is not allowed to evaporate from a specific area. Some examples of how blockage may occur include: […] Heat rash may occur as a side effect of some medications (for example, clonidine [Catapres]). […] Newborns, infants, the elderly, and obese individuals with large areas of skin-on-skin contact (for example, a large overlapping area of abdominal fat) are at risk of developing heat rash. […] Heat rash flares up when sweat is trapped under the skin. This can occur due to blocked sweat pores, intense physical activity, hot and humid weather, overheating, prolonged bed rest, or certain medications. […] The sudden onset of a heat rash typically occurs due to changes in the environment, increased physical activity, or medications that promote excessive sweating and block sweat glands. Identifying and avoiding these triggers is crucial in preventing recurrent heat rashes.

• #34 Prickly heat (heat rash): symptoms, treatment, and prevention – Maple

  https://www.getmaple.ca/blog/prickly-heat-heat-rash-symptoms-treatment-and-prevention/

  Additionally, being overweight or obese may amplify your chances of experiencing the condition. This is due to the rolls of skin these individuals are more likely to have. […] When your body cant expel your sweat properly through your sweat ducts, it becomes trapped in your skin. […] Another common cause of heat rash is travelling to a hot and humid climate. […] While anything that obstructs the sweat glands can trigger heat rash, certain causes are especially notable. […] A big one tends to be wearing constricting or synthetic fabrics that dont allow for air flow especially during high-intensity exercise. […] Prolonged bed rest is another as bedding can function as a barricade blocking your bodys sweat glands.

• #35 Heat Rash: Types, Causes, Treatment, Prevention and MoreFacebookInstagramPinterestTwitterYouTube

  https://dermcollective.com/heat-rash/

  Heat rash develops when sweat ducts become blocked and trap perspiration beneath the skin. […] Main causes are hot, humid weather and friction on the skin’s surface. […] When sweat ducts become blocked, this perspiration becomes trapped and causes inflammation characterized by fluid-filled papules. […] Heat rashes can be induced by an increase in body temperature as a result of either physical activity (internal) or a hot, humid environment (external). […] Those who are obese, or overweight, often face greater obstacles in maintaining their health, and skin hygiene. This group is at greater risk of developing heat rash due to moisture trapped in multiple body folds which can also lead to the growth of bacteria and infection.

• #36 Heat rash – treatments, symptoms and causes | healthdirect

  https://www.healthdirect.gov.au/heat-rash

  Heat rash happens when your sweat glands become blocked. […] Heat rash is caused by blockage of sweat glands during times of high heat or humidity, causing itching or prickling of the skin. […] Heat rash happens when your sweat ducts become blocked or inflamed due to heat and high humidity. […] It is common in newborn babies as their sweat glands haven’t developed properly yet. […] You are more likely to get heat rash if you: are getting used to warmer temperatures, wear too many clothes in warmer temperatures, lie in bed for long periods of time, especially if you have a fever (high temperature).

• #37 Sweating Can Lead to Heat Rash: Here’s What To Do About the Prickly Problem – International Hyperhidrosis Society | Official Site

  https://www.sweathelp.org/home/news-blog/490-sweating-can-lead-to-heat-rash-here-s-what-to-do-about-the-prickly-problem.html

  If you live with hyperhidrosis, youre likely already dealing with quite a few annoyances (to say the least). Today, we want to help you avoid another one – heat rash, which can strike when sweat gets trapped under the skin, especially when the weather is hot and humid. […] Heat rash occurs when sweat becomes trapped under the surface of the skin. Seeping into nearby tissue, the sweat can then lead to tiny pockets of swelling which cause a tell-tale rash and, sometimes, little blisters. Heat rash is more common in babies and young children because their sweat ducts are not yet fully developed and can easily be disrupted. Children are also at greater risk for heat rash because they are slower to adapt to temperature fluctuations. […] Among adults, heat rash often shows up while on a trip to a warmer, more humid location (humidity causes increased sweating), with sudden weather changes, or if youre doing activities that cause you to sweat more than normal (like exercising or working outside in hotter temperatures). Heat rash can also strike people who have an illness or injury that keeps them in bed or in a chair for extended periods of time with sweat and heat accumulating underneath them, or anyone sleeping with too many blankets or warm PJs on. Tight bandages, medication patches, or constricting clothes can also increase risks of localized heat rash.

• #38 Prickly Heat Rash: Causes, Symptoms, Treatments

  https://www.healthline.com/health/prickly-heat

  Miliaria rubra is a type of heat rash or prickly heat that happens when sweat becomes trapped under the skin. […] Prickly heat rashes result from trapped sweat. This can happen due to: hot, humid weather, prolonged exercise, fever, wearing synthetic clothing that doesn’t allow sweat to evaporate, excessive sweating due to certain medications, laying for too long on a damp mattress with a waterproof cover, such as while hospitalized. […] When you sweat more than usual, your glands can become overwhelmed. The sweat ducts may become blocked, trapping the sweat deep underneath your skin. Sweat can also permeate the upper layers of the skin, becoming trapped beneath the epidermis. […] Prickly heat, or miliaria rubra, is a type of heat rash that develops when sweat becomes trapped in the skin, usually around the skin folds. Its typically caused by sweating, whether from being in a hot, humid climate, engaging in intense exercise, or due to another reason.

• #39 How to Treat Heat Rash – K Health

  https://khealth.com/learn/rash/how-to-treat-heat-rash/

  People who live in humid, tropical climates or experience hot weather are more prone to developing heat rash than others. […] Individuals who participate in strenuous exercise or rigorous outdoor activity, particularly in warm weather, are at high risk of developing heat rash. […] Patients on bed rest for medical reasons, including pregnant women, immobilized patients, and the elderly, can develop heat rash if they lay in one position for too long.

• #40 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Other causes of miliaria include: Occlusion of the skin: Transdermal drug patches and tight clothing have been associated with miliaria. […] Type I pseudohypoaldosteronism: This condition involves mineralocorticoid resistance, leading to sodium loss through eccrine glands, and has been associated with pustular miliaria rubra. […] Strenuous physical activity: Intense exercise can contribute to the development of miliaria. […] Morvan syndrome: A rare autosomal recessive disorder characterized by hyperhidrosis, among other abnormalities, which predisposes individuals to miliaria. […] Medications: Drugs that induce sweating, such as bethanechol, clonidine, and neostigmine, have been associated with miliaria. Additionally, a few cases of isotretinoin-induced miliaria have been reported.

• #41 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #42 Heat Rash Photos, Symptoms, Cream, Treatments, Prevention

  https://www.medicinenet.com/heat_rash/article.htm

  A heat rash occurs when sweat ducts become clogged and the sweat cannot get to the surface of the skin. Instead, it becomes trapped beneath the skin’s surface causing a mild inflammation or rash. […] It is uncertain why some people get heat rashes and others don’t. The sweat gland ducts can become blocked if excessive sweating occurs and sweat is not allowed to evaporate from a specific area. Some examples of how blockage may occur include: […] Heat rash may occur as a side effect of some medications (for example, clonidine [Catapres]). […] Newborns, infants, the elderly, and obese individuals with large areas of skin-on-skin contact (for example, a large overlapping area of abdominal fat) are at risk of developing heat rash. […] Heat rash flares up when sweat is trapped under the skin. This can occur due to blocked sweat pores, intense physical activity, hot and humid weather, overheating, prolonged bed rest, or certain medications. […] The sudden onset of a heat rash typically occurs due to changes in the environment, increased physical activity, or medications that promote excessive sweating and block sweat glands. Identifying and avoiding these triggers is crucial in preventing recurrent heat rashes.

• #43 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #44 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #45 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #46 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Other causes of miliaria include: Occlusion of the skin: Transdermal drug patches and tight clothing have been associated with miliaria. […] Type I pseudohypoaldosteronism: This condition involves mineralocorticoid resistance, leading to sodium loss through eccrine glands, and has been associated with pustular miliaria rubra. […] Strenuous physical activity: Intense exercise can contribute to the development of miliaria. […] Morvan syndrome: A rare autosomal recessive disorder characterized by hyperhidrosis, among other abnormalities, which predisposes individuals to miliaria. […] Medications: Drugs that induce sweating, such as bethanechol, clonidine, and neostigmine, have been associated with miliaria. Additionally, a few cases of isotretinoin-induced miliaria have been reported.

• #47 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Other causes of miliaria include: Occlusion of the skin: Transdermal drug patches and tight clothing have been associated with miliaria. […] Type I pseudohypoaldosteronism: This condition involves mineralocorticoid resistance, leading to sodium loss through eccrine glands, and has been associated with pustular miliaria rubra. […] Strenuous physical activity: Intense exercise can contribute to the development of miliaria. […] Morvan syndrome: A rare autosomal recessive disorder characterized by hyperhidrosis, among other abnormalities, which predisposes individuals to miliaria. […] Medications: Drugs that induce sweating, such as bethanechol, clonidine, and neostigmine, have been associated with miliaria. Additionally, a few cases of isotretinoin-induced miliaria have been reported.

• #48 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #49 Heat Rash – International Hyperhidrosis Society | Official Site

  https://www.sweathelp.org/home/heat-rash.html

  In terms of excessive sweating sufferers, specifically, Dr. Zakiya Rice of Dermatology Associates of Georgia notes, „It is not uncommon for a patient with primary focal hyperhidrosis to also present with a concomitant dermatitis [skin irritation]” and heat rash, she says, is certainly one of those possible irritations.

• #50 Heat Rash: Causes, Symptoms and Treatment – WTOP News

  https://wtop.com/news/2024/07/heat-rash-causes-symptoms-and-treatment/

  Maybe youve been outside at a summer barbecue for the day, and you start to notice a red, itchy rash on your skin. […] Its sometimes also called prickly heat or sweat rash, and it happens when sweat glands become blocked. […] Elliott says that heat rash is caused by blockage or inflammation in the eccrine sweat ducts, which are all over your body. […] Some of the circumstances that can make it more likely that someone will develop heat rash include: Hot and humid environments, Strenuous physical activity, Creams or lotions that block sweat ducts, like Vaseline, Tight-fitting clothing. […] In particular, people who are prone to excess sweating, also called hyperhidrosis, are more likely to experience heat rash. […] If you have a fever or are hospitalized, you may be more likely to develop heat rash, she says.

• #51 Prickly heat (heat rash): Images, treatment, causes, and more

  https://www.medicalnewstoday.com/articles/319612

  Certain medications can also trigger prickly heat. Any drugs that raise the body temperature or alter the function of the sweat glands can increase the risk of prickly heat. […] A study in JAMA Dermatology noted that prickly heat developed where the bacteria Staphylococcus were found. These bacteria are normal, but the biofilm they produce can block sweat ducts and contribute to skin conditions. This would suggest that people with Staphylococcus on their skin may be more prone to prickly heat than others.

• #52 Heat Rash (Prickly Heat): Symptoms, Causes, and Treatment

  https://patient.info/skin-conditions/sun-and-sunburn/prickly-heat-and-heat-rash-miliaria

  Heat rash is one of the most common types of the skin rash, and it’s also known as miliaria, prickly heat, or a sweat rash. […] Heat rash or prickly heat (miliaria) is due to blockage of sweat ducts. […] Some people are more prone to heat rash (miliaria) than others. […] It seems that a germ (bacterium) called Staphylococcus epidermidis may play a role. […] Anything else that blocks the sweat ducts can also cause miliaria.

• #53 Miliaria – Wikipedia

  https://en.wikipedia.org/wiki/Miliaria

  Miliaria, commonly known as heat rash, sweat rash, or prickly heat, is a skin disease marked by small, itchy rashes due to sweat trapped under the skin by clogged sweat-gland ducts. Miliaria occurs when sweat glands become clogged due to dead skin cells or bacteria such as Staphylococcus epidermidis, a common bacterium that occurs on the skin, which is also associated with acne. […] The trapped sweat leads to irritation (prickling), itching, and a rash of very small blisters, usually in a localized area of the skin. […] Miliaria can be classified according to the top level at which obstruction occurs in the sweat glands. […] The most commonly encountered form of the illness is miliaria rubra, in which obstruction causes leakage of sweat into the deeper layers of the epidermis, provoking a local inflammatory reaction and giving rise to the typical appearance of redness (hence rubra) and larger (but still only a few millimetres), blister-like lesions.

• #54 Prickly Heat | Encyclopedia.com

  https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/prickly-heat

  Prickly heat is a common disorder of the sweat glands characterized by a red, itching, prickling rash following exposure to high environmental temperatures. […] This disorder occurs during the summer months or year-round in hot, humid climates, and is caused by blockage of the sweat glands. […] The best evidence to date suggests that bacteria form the plugs in the sweat glands. […] Infants are more likely to get miliaria rubra than adults. […] All the sweat retention rashes are also more likely to occur in hot, humid weather. […] Failure to secrete sweat can cause the body to overheat. […] The rash itself may be treated with topical antipruritics (itch relievers). […] Experimental application of topical antiseptics such as hexachlorophene almost completely prevent the rashes of prickly heat. […] Skin rash caused by blockage of the sweat glands in hot, humid weather. It occurs most often in infants and obese people.

• #55 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  The main cause of miliaria is the obstruction of eccrine sweat glands or ducts. This obstruction can result from cutaneous debris or bacteria, such as S epidermidis, which forms biofilms. […] The different types of miliaria involve varying depths of cutaneous obstruction. Miliaria crystallina occurs with ductal occlusion in the stratum corneum; miliaria rubra involves ductal occlusion in the epidermis at the subcorneal layers; and miliaria profunda results from ductal occlusion at the dermal-epidermal junction, specifically within the papillary dermis.

• #56 Eccrine miliaria (miliaria) – UpToDate

  https://www.uptodate.com/contents/eccrine-miliaria-miliaria

  „Miliaria” is the general term used to describe conditions caused by blockage within the sweat duct. Eccrine miliaria is a common, transient cutaneous disorder caused by blockage within the eccrine sweat duct. It is also known as „sweat rash,” „prickly heat,” or „heat rash.” […] There are three main types of eccrine miliaria (crystallina, rubra, and profunda), which are distinguished by clinical appearance as well as histologic findings. The type of miliaria that develops depends upon the level at which the duct is blocked. […] Miliaria crystallina – Occurs when the duct is blocked superficially, within or close to the stratum corneum. […] Miliaria rubra – Occurs when the duct is blocked deeper in the epidermis.

• #57 Eccrine miliaria (miliaria) – UpToDate

  https://www.uptodate.com/contents/eccrine-miliaria-miliaria

  „Miliaria” is the general term used to describe conditions caused by blockage within the sweat duct. Eccrine miliaria is a common, transient cutaneous disorder caused by blockage within the eccrine sweat duct. It is also known as „sweat rash,” „prickly heat,” or „heat rash.” […] There are three main types of eccrine miliaria (crystallina, rubra, and profunda), which are distinguished by clinical appearance as well as histologic findings. The type of miliaria that develops depends upon the level at which the duct is blocked. […] Miliaria crystallina – Occurs when the duct is blocked superficially, within or close to the stratum corneum. […] Miliaria rubra – Occurs when the duct is blocked deeper in the epidermis.

• #58 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  High-Intensity Physical Activity: Excessive physical work or exercise can also cause this condition. […] Certain Medications: Some medications that induce sweating, like bethanechol, clonidine, neostigmine, and isotretinoin, have been associated with miliaria. […] Miliaria, a condition that often affects newborns and those who sweat a lot or live in hot, humid climates, can occur in individuals of all genders and races. However, each form of miliaria tends to affect different populations. […] Miliaria crystallina, also known as sudamina, usually affects newborns under two weeks old, with 4.5% to 9% of newborns being affected. […] Miliaria rubra, the most common form of miliaria, is often seen in newborns between 1 and 3 weeks old. This condition can affect up to 30% of adults living in hot and humid conditions.

• #59 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #60 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  The main cause of miliaria is the obstruction of eccrine sweat glands or ducts. This obstruction can result from cutaneous debris or bacteria, such as S epidermidis, which forms biofilms. […] The different types of miliaria involve varying depths of cutaneous obstruction. Miliaria crystallina occurs with ductal occlusion in the stratum corneum; miliaria rubra involves ductal occlusion in the epidermis at the subcorneal layers; and miliaria profunda results from ductal occlusion at the dermal-epidermal junction, specifically within the papillary dermis.

• #61 Eccrine miliaria (miliaria) – UpToDate

  https://www.uptodate.com/contents/eccrine-miliaria-miliaria

  „Miliaria” is the general term used to describe conditions caused by blockage within the sweat duct. Eccrine miliaria is a common, transient cutaneous disorder caused by blockage within the eccrine sweat duct. It is also known as „sweat rash,” „prickly heat,” or „heat rash.” […] There are three main types of eccrine miliaria (crystallina, rubra, and profunda), which are distinguished by clinical appearance as well as histologic findings. The type of miliaria that develops depends upon the level at which the duct is blocked. […] Miliaria crystallina – Occurs when the duct is blocked superficially, within or close to the stratum corneum. […] Miliaria rubra – Occurs when the duct is blocked deeper in the epidermis.

• #62 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  High-Intensity Physical Activity: Excessive physical work or exercise can also cause this condition. […] Certain Medications: Some medications that induce sweating, like bethanechol, clonidine, neostigmine, and isotretinoin, have been associated with miliaria. […] Miliaria, a condition that often affects newborns and those who sweat a lot or live in hot, humid climates, can occur in individuals of all genders and races. However, each form of miliaria tends to affect different populations. […] Miliaria crystallina, also known as sudamina, usually affects newborns under two weeks old, with 4.5% to 9% of newborns being affected. […] Miliaria rubra, the most common form of miliaria, is often seen in newborns between 1 and 3 weeks old. This condition can affect up to 30% of adults living in hot and humid conditions.

• #63 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #64 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  The main cause of miliaria is the obstruction of eccrine sweat glands or ducts. This obstruction can result from cutaneous debris or bacteria, such as S epidermidis, which forms biofilms. […] The different types of miliaria involve varying depths of cutaneous obstruction. Miliaria crystallina occurs with ductal occlusion in the stratum corneum; miliaria rubra involves ductal occlusion in the epidermis at the subcorneal layers; and miliaria profunda results from ductal occlusion at the dermal-epidermal junction, specifically within the papillary dermis.

• #65 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria profunda, the rarest form of miliaria, is usually found in individuals who have had multiple bouts of miliaria rubra or those who have recently started living in warmer climates, such as military personnel stationed in tropical climates. […] Miliaria is a skin condition causing blisters, small raised spots, and pus-filled bumps. […] Miliaria, commonly known as heat rash, is typically diagnosed by a doctor based on its appearance and other symptoms, as lab tests often aren’t much help. […] Miliaria, commonly known as heat rash, is usually caused by hot, humid conditions leading to excessive sweating and blockage of sweat ducts. […] Different types of heat rash have different treatments. For example, miliaria crystallina, which presents as small, clear bumps, usually doesn’t require treatment, as it usually goes away on its own within a day.

• #66 Miliaria – Wikipedia

  https://en.wikipedia.org/wiki/Miliaria

  Miliaria rubra is also known as prickly heat and heat rash. […] The most severe form of miliaria, miliaria profunda, sometimes referred to as „wildfire” due to the rapid spread and severe burning sensations, generally occurs as a complication of repeated episodes of miliaria rubra. […] Miliaria pustulosa describes pustules due to inflammation and bacterial infection. […] Postmiliarial hypohidrosis is a skin condition that results from occlusion of sweat ducts and pores, and may be severe enough to impair an individual’s ability to perform sustained work in a hot environment. […] Tropical anhidrotic asthenia is a skin condition, a rare form of miliaria, with long-lasting poral occlusion, which produces anhidrosis and heat retention. […] Occlusion miliaria is a skin condition that is accompanied by anhidrosis and increased heat-stress susceptibility, all after the application of extensive polyethylene film occlusion for 48 hours or longer.

• #67 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria rubra, also known as prickly heat, which presents as red bumps and can cause intense itching or prickling, can be managed by applying a mild corticosteroid cream to decrease inflammation. […] If these bumps turn into pus-filled blisters, a condition known as miliaria pustulosa, you will likely need to apply a topical antibiotic to treat the secondary bacterial infection. […] The most dangerous complication from miliaria, also known as heat rash, is anhidrosis. Anhidrosis is the inability to sweat normally, which can lead to problems with controlling body temperature, and as a result, heat exhaustion. […] Doctors need to teach patients about what causes miliaria (a type of heat rash), and what factors may increase their risk.

• #68 Miliaria – Wikipedia

  https://en.wikipedia.org/wiki/Miliaria

  Miliaria rubra is also known as prickly heat and heat rash. […] The most severe form of miliaria, miliaria profunda, sometimes referred to as „wildfire” due to the rapid spread and severe burning sensations, generally occurs as a complication of repeated episodes of miliaria rubra. […] Miliaria pustulosa describes pustules due to inflammation and bacterial infection. […] Postmiliarial hypohidrosis is a skin condition that results from occlusion of sweat ducts and pores, and may be severe enough to impair an individual’s ability to perform sustained work in a hot environment. […] Tropical anhidrotic asthenia is a skin condition, a rare form of miliaria, with long-lasting poral occlusion, which produces anhidrosis and heat retention. […] Occlusion miliaria is a skin condition that is accompanied by anhidrosis and increased heat-stress susceptibility, all after the application of extensive polyethylene film occlusion for 48 hours or longer.

• #69 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria rubra, also known as prickly heat, which presents as red bumps and can cause intense itching or prickling, can be managed by applying a mild corticosteroid cream to decrease inflammation. […] If these bumps turn into pus-filled blisters, a condition known as miliaria pustulosa, you will likely need to apply a topical antibiotic to treat the secondary bacterial infection. […] The most dangerous complication from miliaria, also known as heat rash, is anhidrosis. Anhidrosis is the inability to sweat normally, which can lead to problems with controlling body temperature, and as a result, heat exhaustion. […] Doctors need to teach patients about what causes miliaria (a type of heat rash), and what factors may increase their risk.

• #70 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Other causes of miliaria include: Occlusion of the skin: Transdermal drug patches and tight clothing have been associated with miliaria. […] Type I pseudohypoaldosteronism: This condition involves mineralocorticoid resistance, leading to sodium loss through eccrine glands, and has been associated with pustular miliaria rubra. […] Strenuous physical activity: Intense exercise can contribute to the development of miliaria. […] Morvan syndrome: A rare autosomal recessive disorder characterized by hyperhidrosis, among other abnormalities, which predisposes individuals to miliaria. […] Medications: Drugs that induce sweating, such as bethanechol, clonidine, and neostigmine, have been associated with miliaria. Additionally, a few cases of isotretinoin-induced miliaria have been reported.

• #71 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #72 Prickly Heat | UMass Memorial Health

  https://www.ummhealth.org/health-library/prickly-heat

  Prickly heat is a skin rash caused by sweat trapped in the skin. […] The condition is caused by narrowed or clogged sweat ducts. This may be because of things that cause sweating, such as: Hot, humid weather. […] The rash usually goes away on its own when sweating is prevented. […] The condition is caused by narrowed or clogged sweat ducts. This may be from things that cause sweating, such as hot, humid weather or physical activity.

• #73 Prickly Heat

  https://livinghealthy.hawaiipacifichealth.org/Library/DiseasesConditions/Adult/Hematology/85,P00307

  Prickly heat is a skin rash caused by sweat trapped in the skin. […] The condition is caused by narrowed or clogged sweat ducts. This may be from things that cause sweating, such as hot, humid weather or physical activity. […] The rash usually goes away on its own when sweating is prevented.

• #74 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #75 Prickly heat (heat rash): symptoms, treatment, and prevention – Maple

  https://www.getmaple.ca/blog/prickly-heat-heat-rash-symptoms-treatment-and-prevention/

  Hot and humid conditions are ideal for developing prickly heat rash, but theyre not its only cause. […] Heat rash can be a byproduct of your self-care if you enjoy hot yoga, exercise frequently, or use steam rooms or saunas. […] Prickly heat rash is pretty aptly named. Its a prickly, itchy, and sometimes stinging rash that develops on your skin as a result of heat. […] The condition occurs when your sweat glands become obstructed. Because of this, sweat is trapped in the skin, resulting in a skin rash. […] Heat rash can sometimes be hard to self-diagnose as it can look like a number of other skin conditions and rashes. […] Under the right circumstances, anyone can develop prickly heat rash, but here are some of the most likely groups. […] Newborns and babies are highly prone to heat rash because their sweat glands are just developing.

• #76 Heat Rash Prickly Heat (Sweat Rash) Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/22440-heat-rashprickly-heat

  A heat rash (prickly heat) can form on your skin when sweat gets trapped under the surface. […] Heat rash looks red on lighter skin but may look white or gray on darker skin. […] A heat rash is a group of tiny bumps, similar to pimples or blisters. […] Sweat thats trapped within your skin causes a heat rash. […] A clog can happen if: Too much sweat builds up between your skin and your clothing and/or: Dead skin cells (corneocytes) build up in your pores or sweat ducts. […] You may be more likely to develop a heat rash if you: Do intense physical activity, especially in the heat; Have a fever; Have a condition that makes you sweat more than expected (hyperhidrosis); Live in a hot or humid climate; Need bedrest for a while; Take medications that make your sweat glands more active; Wear tight clothing when working out or in warm environments. […] Babies, infants and toddlers have a higher risk because their sweat glands and ducts are still growing, and their bodies may not control their temperatures as well as adults do. […] Its possible for heat rash to lead to a bacterial skin infection. […] Sweat needs to come out.

• #77 When Your Child Has Heat Rash (Prickly Heat)

  https://umcno.staywellsolutionsonline.com/Wellness/Nutrition/3,89381

  Heat rash is caused by blocked sweat glands. This can happen when your child: […] Is exposed to too much sun or heat […] Is overdressed (wearing too many layers of clothing) […] Engages in intense exercise or physical activity.

• #78 Heat rash: Symptoms, causes and treatment of prickly heat | HealthShots

  https://www.healthshots.com/beauty/skin-care/heat-rash/

  Heat rashes, also called prickly heat and miliaria, are red, small, and raised spots that make you feel itchy. […] Heat rash is a skin condition caused by the blockage of sweat glands. When sweat gets trapped under the skin due to obstructed sweat ducts, it leads to the formation of rashes. […] The main causes of heat rash include: […] High temperatures and humidity, as well as physical activity, can cause excessive sweating. When sweat cannot escape due to blocked sweat ducts, it accumulates under the skin, leading to heat rashes. […] The build-up of dead skin cells can block sweat ducts, making it difficult for sweat to escape, says the expert. […] Wearing tight or synthetic clothing that does not allow the skin to breathe can trap sweat and contribute to the development of heat rashes. […] Fevers can increase the body temperature and lead to sweating, which may lead to heat rashes.

• #79 Heat rash: Symptoms, treatment, appearance, and causes

  https://www.medicalnewstoday.com/articles/181512

  Heat rash, or miliaria, happens when sweat gland ducts become blocked. […] This may be due to: […] sweat glands still developing, as in newborns […] a hot and humid environment […] physical activity […] a fever […] wearing synthetic fabrics close to the skin […] wearing a nonporous bandage […] prolonged bed rest […] the use of some medications, especially those that reduce sweating […] radiation therapy […] some health conditions, such as toxic epidermal necrolysis.

• #80 Heat rash: Symptoms, causes and treatment of prickly heat | HealthShots

  https://www.healthshots.com/beauty/skin-care/heat-rash/

  Heat rashes, also called prickly heat and miliaria, are red, small, and raised spots that make you feel itchy. […] Heat rash is a skin condition caused by the blockage of sweat glands. When sweat gets trapped under the skin due to obstructed sweat ducts, it leads to the formation of rashes. […] The main causes of heat rash include: […] High temperatures and humidity, as well as physical activity, can cause excessive sweating. When sweat cannot escape due to blocked sweat ducts, it accumulates under the skin, leading to heat rashes. […] The build-up of dead skin cells can block sweat ducts, making it difficult for sweat to escape, says the expert. […] Wearing tight or synthetic clothing that does not allow the skin to breathe can trap sweat and contribute to the development of heat rashes. […] Fevers can increase the body temperature and lead to sweating, which may lead to heat rashes.

• #81 Heat Rash: Types, Causes, Symptoms, & Treatment | ACUC

  https://alamocityuc.com/treatment-for/rashes-allergic-reactions/heat-rash-types-causes-symptoms-diagnosis-and-treatment/

  Heat rash is a fine pink rash caused by overheating that appears mainly on the chest, neck, groin, waistline, under the breasts, on skin folds and upper back. These rashes appear on the areas where the sweat ducts are blocked and inflamed due to heat and high humidity. […] Causes of Heat Rash: Hot humid weather that overworks the sweat glands, Excessive sweating under clothing that does not absorb sweat, Ointments that block off sweat glands, Undeveloped sweat glands in babies, Hard exercise, Radiation therapy, Swaddling infants in heavy garments, Lying in bed for a long period due to illness or immobility especially when you have a fever.

• #82 Miliaria – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK537176/

  Other causes of miliaria include: Occlusion of the skin: Transdermal drug patches and tight clothing have been associated with miliaria. […] Type I pseudohypoaldosteronism: This condition involves mineralocorticoid resistance, leading to sodium loss through eccrine glands, and has been associated with pustular miliaria rubra. […] Strenuous physical activity: Intense exercise can contribute to the development of miliaria. […] Morvan syndrome: A rare autosomal recessive disorder characterized by hyperhidrosis, among other abnormalities, which predisposes individuals to miliaria. […] Medications: Drugs that induce sweating, such as bethanechol, clonidine, and neostigmine, have been associated with miliaria. Additionally, a few cases of isotretinoin-induced miliaria have been reported.

• #83 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #84 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #85 Heat Rash Photos, Symptoms, Cream, Treatments, Prevention

  https://www.medicinenet.com/heat_rash/article.htm

  A heat rash occurs when sweat ducts become clogged and the sweat cannot get to the surface of the skin. Instead, it becomes trapped beneath the skin’s surface causing a mild inflammation or rash. […] It is uncertain why some people get heat rashes and others don’t. The sweat gland ducts can become blocked if excessive sweating occurs and sweat is not allowed to evaporate from a specific area. Some examples of how blockage may occur include: […] Heat rash may occur as a side effect of some medications (for example, clonidine [Catapres]). […] Newborns, infants, the elderly, and obese individuals with large areas of skin-on-skin contact (for example, a large overlapping area of abdominal fat) are at risk of developing heat rash. […] Heat rash flares up when sweat is trapped under the skin. This can occur due to blocked sweat pores, intense physical activity, hot and humid weather, overheating, prolonged bed rest, or certain medications. […] The sudden onset of a heat rash typically occurs due to changes in the environment, increased physical activity, or medications that promote excessive sweating and block sweat glands. Identifying and avoiding these triggers is crucial in preventing recurrent heat rashes.

• #86 Heat Rash: Signs, Causes, Duration, and Treatment

  https://www.health.com/heat-rash-7511332

  Heat rash is a skin irritation you can develop from excessively sweating in hot, humid conditions. The rash can form when your sweat ducts and glands become blocked. […] Heat rash is triggered by blocked sweat glands and ducts. The blockage could be caused by substances like bacteria. The blockage causes sweat to leak into the outermost layer of your skin, causing swelling and further duct blockage. The sweat being trapped under your skin can lead to heat rash. […] Sweating is the most common cause of heat rash, meaning hot or humid conditions are where heat rash is most common. Having a high fever can also lead to heat rash. Some other possible causes of heat rash include: medications that cause sweating, such as the high blood pressure medication Catapres (clonidine); Morvan syndrome (a rare disease causing excessive sweating, or hyperhidrosis); patches placed on your skin for medical purposes; strenuous physical activity; tight clothing. […] Although anyone can get heat rash, infants and children are at a higher risk because their sweat ducts are not fully developed.

• #87 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #88 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #89 Heat Rash: Treatment and Prevention

  https://www.health.com/condition/skin-conditions/heat-rash-treatment

  This red, itchy rash typically occurs due to excessive sweating and hot, humid weather. […] A heat rash occurs when something, such as bacteria or debris, blocks your sweat glands. As a result, sweat flows backward into your skin layers. That blockage causes inflammation, redness, and swelling. […] Anyone can develop a heat rash, but infants and children are likelier than others. That’s because their sweat glands are not yet fully developed. […] Other factors that increase your heat rash risk: Certain medications (e.g., isotretinoin, an oral medication that treats acne), High fevers, Hot and humid weather, Hyperhidrosis, which causes excessive sweating, Sweating, Tight clothing, Transdermal drug patches (e.g., nicotine patches), Vigorous physical activity.

• #90 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #91 Heat rash: Symptoms, treatment, appearance, and causes

  https://www.medicalnewstoday.com/articles/181512

  Heat rash, or miliaria, happens when sweat gland ducts become blocked. […] This may be due to: […] sweat glands still developing, as in newborns […] a hot and humid environment […] physical activity […] a fever […] wearing synthetic fabrics close to the skin […] wearing a nonporous bandage […] prolonged bed rest […] the use of some medications, especially those that reduce sweating […] radiation therapy […] some health conditions, such as toxic epidermal necrolysis.

• #92 Heat Rash: Types, Causes, Symptoms, & Treatment | ACUC

  https://alamocityuc.com/treatment-for/rashes-allergic-reactions/heat-rash-types-causes-symptoms-diagnosis-and-treatment/

  Heat rash is a fine pink rash caused by overheating that appears mainly on the chest, neck, groin, waistline, under the breasts, on skin folds and upper back. These rashes appear on the areas where the sweat ducts are blocked and inflamed due to heat and high humidity. […] Causes of Heat Rash: Hot humid weather that overworks the sweat glands, Excessive sweating under clothing that does not absorb sweat, Ointments that block off sweat glands, Undeveloped sweat glands in babies, Hard exercise, Radiation therapy, Swaddling infants in heavy garments, Lying in bed for a long period due to illness or immobility especially when you have a fever.

• #93 Miliaria Rubra: Causes, Symptoms, and Treatment – Skinsight

  https://skinsight.com/skin-conditions/miliaria-rubra/

  Miliaria rubra, commonly known as heat rash or prickly heat, is a rash caused by blockage of the sweat ducts that carry sweat from sweat glands to the skin surface. […] Heat rash can be due to high fever, excessive sweating, or being overly bundled. […] Heat rash commonly occurs after exposure to hot conditions. […] The rash can cause intense itching and stinging, which can become worsened by heat. […] Prevention and treatment of heat rash consists of controlling heat and humidity. […] Your medical professional may prescribe a topical steroid lotion or cream to help with symptoms. […] If there are signs of secondary bacterial skin infection associated with the heat rash or otherwise, oral or topical antibiotics may be given. […] Typically, heat rash will resolve with self-care measures and no medical care is necessary. […] However, two complications from heat rash include secondary infection from scratching and heat exhaustion. […] Although uncommon, infected areas due to breaks in the skin caused by scratching may need antibiotic treatment for resolution.

• #94 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria rubra, also known as prickly heat, which presents as red bumps and can cause intense itching or prickling, can be managed by applying a mild corticosteroid cream to decrease inflammation. […] If these bumps turn into pus-filled blisters, a condition known as miliaria pustulosa, you will likely need to apply a topical antibiotic to treat the secondary bacterial infection. […] The most dangerous complication from miliaria, also known as heat rash, is anhidrosis. Anhidrosis is the inability to sweat normally, which can lead to problems with controlling body temperature, and as a result, heat exhaustion. […] Doctors need to teach patients about what causes miliaria (a type of heat rash), and what factors may increase their risk.

• #95 Heat Rash Prickly Heat (Sweat Rash) Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/22440-heat-rashprickly-heat

  A heat rash (prickly heat) can form on your skin when sweat gets trapped under the surface. […] Heat rash looks red on lighter skin but may look white or gray on darker skin. […] A heat rash is a group of tiny bumps, similar to pimples or blisters. […] Sweat thats trapped within your skin causes a heat rash. […] A clog can happen if: Too much sweat builds up between your skin and your clothing and/or: Dead skin cells (corneocytes) build up in your pores or sweat ducts. […] You may be more likely to develop a heat rash if you: Do intense physical activity, especially in the heat; Have a fever; Have a condition that makes you sweat more than expected (hyperhidrosis); Live in a hot or humid climate; Need bedrest for a while; Take medications that make your sweat glands more active; Wear tight clothing when working out or in warm environments. […] Babies, infants and toddlers have a higher risk because their sweat glands and ducts are still growing, and their bodies may not control their temperatures as well as adults do. […] Its possible for heat rash to lead to a bacterial skin infection. […] Sweat needs to come out.

• #96 Miliaria Rubra: Causes, Symptoms, and Treatment – Skinsight

  https://skinsight.com/skin-conditions/miliaria-rubra/

  Miliaria rubra, commonly known as heat rash or prickly heat, is a rash caused by blockage of the sweat ducts that carry sweat from sweat glands to the skin surface. […] Heat rash can be due to high fever, excessive sweating, or being overly bundled. […] Heat rash commonly occurs after exposure to hot conditions. […] The rash can cause intense itching and stinging, which can become worsened by heat. […] Prevention and treatment of heat rash consists of controlling heat and humidity. […] Your medical professional may prescribe a topical steroid lotion or cream to help with symptoms. […] If there are signs of secondary bacterial skin infection associated with the heat rash or otherwise, oral or topical antibiotics may be given. […] Typically, heat rash will resolve with self-care measures and no medical care is necessary. […] However, two complications from heat rash include secondary infection from scratching and heat exhaustion. […] Although uncommon, infected areas due to breaks in the skin caused by scratching may need antibiotic treatment for resolution.

• #97 Miliaria – Wikipedia

  https://en.wikipedia.org/wiki/Miliaria

  Miliaria rubra is also known as prickly heat and heat rash. […] The most severe form of miliaria, miliaria profunda, sometimes referred to as „wildfire” due to the rapid spread and severe burning sensations, generally occurs as a complication of repeated episodes of miliaria rubra. […] Miliaria pustulosa describes pustules due to inflammation and bacterial infection. […] Postmiliarial hypohidrosis is a skin condition that results from occlusion of sweat ducts and pores, and may be severe enough to impair an individual’s ability to perform sustained work in a hot environment. […] Tropical anhidrotic asthenia is a skin condition, a rare form of miliaria, with long-lasting poral occlusion, which produces anhidrosis and heat retention. […] Occlusion miliaria is a skin condition that is accompanied by anhidrosis and increased heat-stress susceptibility, all after the application of extensive polyethylene film occlusion for 48 hours or longer.

• #98 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria rubra, also known as prickly heat, which presents as red bumps and can cause intense itching or prickling, can be managed by applying a mild corticosteroid cream to decrease inflammation. […] If these bumps turn into pus-filled blisters, a condition known as miliaria pustulosa, you will likely need to apply a topical antibiotic to treat the secondary bacterial infection. […] The most dangerous complication from miliaria, also known as heat rash, is anhidrosis. Anhidrosis is the inability to sweat normally, which can lead to problems with controlling body temperature, and as a result, heat exhaustion. […] Doctors need to teach patients about what causes miliaria (a type of heat rash), and what factors may increase their risk.

• #99 Summer skin rashes – heat rash, hives and treatment | healthdirect

  https://www.healthdirect.gov.au/summer-skin-rashes

  Heat rash or prickly heat is caused by a blockage and inflammation of your sweat ducts. This can be made worse by heat and high humidity. […] Heat rash may also be an early warning of heat stroke and heat exhaustion. […] Heat rash (or prickly heat) is little spots on the skin. It might appear if your child overheats. Prevent and treat by keeping your child cool. […] Heat rash or prickly heat is caused by blockage of sweat glands during times of high heat or humidity, causing itching or prickling of the skin.

• #100 Prickly Heat | UMass Memorial Health

  https://www.ummhealth.org/health-library/prickly-heat

  Prickly heat is a skin rash caused by sweat trapped in the skin. […] The condition is caused by narrowed or clogged sweat ducts. This may be because of things that cause sweating, such as: Hot, humid weather. […] The rash usually goes away on its own when sweating is prevented. […] The condition is caused by narrowed or clogged sweat ducts. This may be from things that cause sweating, such as hot, humid weather or physical activity.

• #101 Prickly Heat

  https://livinghealthy.hawaiipacifichealth.org/Library/DiseasesConditions/Adult/Hematology/85,P00307

  Prickly heat is a skin rash caused by sweat trapped in the skin. […] The condition is caused by narrowed or clogged sweat ducts. This may be from things that cause sweating, such as hot, humid weather or physical activity. […] The rash usually goes away on its own when sweating is prevented.

• #102 Causes and cures for adult heat rash | Medical Prime Shinkawa

  https://medicalprime-shinkawa.com/column_en/588

  Sweat rash (contact dermatitis due to sweat) occurs when these ingredients irritate the skin and cause the skin to become rough or inflamed. […] The three basic treatments for atopic dermatitis are to suppress inflammation and itching with drugs, to enhance the barrier function of the skin with skin care (moisturizing and cleansing), and to remove as much as possible the factors that worsen the symptoms. […] Of the three types of heat rash, crystal-like heat rash and red heat rash are often cured by self-care. […] The important part of self-care is to keep your skin clean.

• #103 Miliaria Rubra: Causes, Symptoms, and Treatment – Skinsight

  https://skinsight.com/skin-conditions/miliaria-rubra/

  Miliaria rubra, commonly known as heat rash or prickly heat, is a rash caused by blockage of the sweat ducts that carry sweat from sweat glands to the skin surface. […] Heat rash can be due to high fever, excessive sweating, or being overly bundled. […] Heat rash commonly occurs after exposure to hot conditions. […] The rash can cause intense itching and stinging, which can become worsened by heat. […] Prevention and treatment of heat rash consists of controlling heat and humidity. […] Your medical professional may prescribe a topical steroid lotion or cream to help with symptoms. […] If there are signs of secondary bacterial skin infection associated with the heat rash or otherwise, oral or topical antibiotics may be given. […] Typically, heat rash will resolve with self-care measures and no medical care is necessary. […] However, two complications from heat rash include secondary infection from scratching and heat exhaustion. […] Although uncommon, infected areas due to breaks in the skin caused by scratching may need antibiotic treatment for resolution.

• #104 Miliaria (Heat Rash, Prickly Heat, Sweat Rash) – MD Searchlight

  https://mdsearchlight.com/skin-problems-and-treatments/miliaria-heat-rash-prickly-heat-sweat-rash/

  Miliaria rubra, also known as prickly heat, which presents as red bumps and can cause intense itching or prickling, can be managed by applying a mild corticosteroid cream to decrease inflammation. […] If these bumps turn into pus-filled blisters, a condition known as miliaria pustulosa, you will likely need to apply a topical antibiotic to treat the secondary bacterial infection. […] The most dangerous complication from miliaria, also known as heat rash, is anhidrosis. Anhidrosis is the inability to sweat normally, which can lead to problems with controlling body temperature, and as a result, heat exhaustion. […] Doctors need to teach patients about what causes miliaria (a type of heat rash), and what factors may increase their risk.

• #105 Miliaria Rubra: Causes, Symptoms, and Treatment – Skinsight

  https://skinsight.com/skin-conditions/miliaria-rubra/

  Miliaria rubra, commonly known as heat rash or prickly heat, is a rash caused by blockage of the sweat ducts that carry sweat from sweat glands to the skin surface. […] Heat rash can be due to high fever, excessive sweating, or being overly bundled. […] Heat rash commonly occurs after exposure to hot conditions. […] The rash can cause intense itching and stinging, which can become worsened by heat. […] Prevention and treatment of heat rash consists of controlling heat and humidity. […] Your medical professional may prescribe a topical steroid lotion or cream to help with symptoms. […] If there are signs of secondary bacterial skin infection associated with the heat rash or otherwise, oral or topical antibiotics may be given. […] Typically, heat rash will resolve with self-care measures and no medical care is necessary. […] However, two complications from heat rash include secondary infection from scratching and heat exhaustion. […] Although uncommon, infected areas due to breaks in the skin caused by scratching may need antibiotic treatment for resolution.

• #106 Prickly Heat | Encyclopedia.com

  https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/prickly-heat

  Prickly heat is a common disorder of the sweat glands characterized by a red, itching, prickling rash following exposure to high environmental temperatures. […] This disorder occurs during the summer months or year-round in hot, humid climates, and is caused by blockage of the sweat glands. […] The best evidence to date suggests that bacteria form the plugs in the sweat glands. […] Infants are more likely to get miliaria rubra than adults. […] All the sweat retention rashes are also more likely to occur in hot, humid weather. […] Failure to secrete sweat can cause the body to overheat. […] The rash itself may be treated with topical antipruritics (itch relievers). […] Experimental application of topical antiseptics such as hexachlorophene almost completely prevent the rashes of prickly heat. […] Skin rash caused by blockage of the sweat glands in hot, humid weather. It occurs most often in infants and obese people.

• #107 Heat (Prickly) Rash: Pictures and Quick Treatment

  https://www.verywellhealth.com/heat-rash-8627853

  Miliaria profunda causes a heat rash that occurs deep into the skin layers and occurs frequently (chronic). […] Heat rash is a preventable condition. During the summer months, you can reduce your risk by staying cool and hydrated, avoiding exercise in hot, humid weather, and keeping your skin clean and free of creams and ointments.

• #108 Miliaria: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/1070840-overview

  Miliaria is a common disorder of the eccrine sweat glands that often occurs in conditions of increased heat and humidity. It is thought to be caused by blockage of the sweat ducts, which results in the leakage of eccrine sweat into the epidermis or dermis. […] The following causes of miliaria have been recognized: Immaturity of the eccrine ducts – Neonates are thought to have immature eccrine ducts that easily rupture when sweating is induced; this rupture leads to miliaria. Occlusion of the skin, as with transdermal drug patches. Occlusive clothing – A case series reported 18 cases of miliaria rubra in US Army personnel who routinely wore flame-resistant army combat uniforms composed of a 65% rayon/25% Kevlar/10% nylon blend while serving in the hot, arid conditions of Afghanistan. Hot, humid conditions – Tropical climates, incubators in neonatal nurseries, and febrile illnesses may precipitate miliaria. Lack of acclimatization – Miliaria is common in individuals who move from a temperate climate to a tropical climate; it usually resolves after the individual has lived in the hot, humid conditions for many months. Exertion or high fever – Any stimulus to sweat may precipitate or exacerbate miliaria. Type I pseudohypoaldosteronism – This disorder of mineralocorticoid resistance leads to excessive loss of salt through eccrine secretions and is associated with repeated episodes of pustular miliaria rubra (miliaria pustulosa). Morvan syndrome – Miliaria rubra has been reported in this rare autoimmune disorder characterized by neuromyotonia, insomnia, hallucinations, pain, weight loss, and hyperhidrosis. Drugs – Bethanechol, which promotes sweating, has been reported to cause miliaria, as have clonidine and neostigmine. Isotretinoin, which affects follicular differentiation, has also been reported to cause miliaria as well; miliaria crystallina has been reported after administration of doxorubicin and erythropoietin, as well as idarubicin with retinoic acid. Bacteria – Staphylococci are associated with miliaria, and antibiotics prevent miliaria in an experimental setting. Ultraviolet (UV) radiation – Some researchers have found that miliaria crystallina preferentially occurs in UV-exposed skin.

• #109 Heat rash: Symptoms, causes and treatment of prickly heat | HealthShots

  https://www.healthshots.com/beauty/skin-care/heat-rash/

  Heat rashes, also called prickly heat and miliaria, are red, small, and raised spots that make you feel itchy. […] Heat rash is a skin condition caused by the blockage of sweat glands. When sweat gets trapped under the skin due to obstructed sweat ducts, it leads to the formation of rashes. […] The main causes of heat rash include: […] High temperatures and humidity, as well as physical activity, can cause excessive sweating. When sweat cannot escape due to blocked sweat ducts, it accumulates under the skin, leading to heat rashes. […] The build-up of dead skin cells can block sweat ducts, making it difficult for sweat to escape, says the expert. […] Wearing tight or synthetic clothing that does not allow the skin to breathe can trap sweat and contribute to the development of heat rashes. […] Fevers can increase the body temperature and lead to sweating, which may lead to heat rashes.

• #110 Heat Rash: Pictures, Symptoms, Causes & Home Remedies

  https://www.emedicinehealth.com/heat_rash/article_em.htm

  Heat rash is caused by exposure to a hot environment. […] Heat rash, or prickly heat, is thought to arise from plugging of sweat ducts and hair follicles on the skin. Occluded sweat glands with trapped sweat give rise to the tiny water bumps seen in this condition. […] It is important to wash off sweat with gentle soap and water.

• #111 Causes and cures for adult heat rash | Medical Prime Shinkawa

  https://medicalprime-shinkawa.com/column_en/588

  Sweat rash (contact dermatitis due to sweat) occurs when these ingredients irritate the skin and cause the skin to become rough or inflamed. […] The three basic treatments for atopic dermatitis are to suppress inflammation and itching with drugs, to enhance the barrier function of the skin with skin care (moisturizing and cleansing), and to remove as much as possible the factors that worsen the symptoms. […] Of the three types of heat rash, crystal-like heat rash and red heat rash are often cured by self-care. […] The important part of self-care is to keep your skin clean.

• #112 Heat Rash: Treatment, Symptoms, Causes, and More

  https://www.healthline.com/health/heat-rash-pictures-remedies

  Heat rash occurs when pores become clogged and cant expel sweat. This is more likely to happen in warmer months or climates, or after intense exercise. […] Wearing certain types of clothing can trap sweat, leading to heat rash. Using thick lotions and creams can also lead to heat rash. […] It’s possible to get heat rash in cooler temperatures if you wear clothes or sleep under covers that lead to overheating. Babies are more likely to develop heat rash because their pores are underdeveloped. […] Friction on the surface of the skin often causes heat rash. Adults usually develop heat rash on the parts of their bodies that rub together, like between the inner thighs or under the arms. Babies often develop heat rash on their necks, but it can also develop in skin folds like those of the armpits, elbows, and thighs.

• #113 How to manage heat rash

  https://www.healthcert.com/blog/how-to-manage-heat-rash

  Heat rash (also known as prickly heat or miliaria) is a common problem, especially during hot and humid weather. […] Heat rash occurs when sweat gets trapped in the sweat ducts. This leads to inflammation and the appearance of tiny red bumps on the skin (miliaria rubra). […] For proper assessment, it is vital to take detailed history, including recent exposure to hot and humid environments, wearing tight clothing, and excessive sweating. […] Most cases of heat rash resolve with self-care measures within a few days to a week. However, GPs should advise patients to follow up if symptoms persist or worsen despite treatment. […] Referral to a dermatologist may be necessary for severe or recurrent cases that require further evaluation and management.

• #114 How to Get Rid of Heat Rash (Prickly Heat) – Riverchase Dermatology

  https://www.riverchasedermatology.com/blog/how-to-get-rid-of-heat-rash-prickly-heat/

  How to get rid of heat rash? It typically goes away on its own within a few days. […] What causes heat rash? Heat rash, or miliaria, happens when sweat ducts and pores become blocked and sweat leaks into the surrounding skin instead of evaporating into the air through the pore. […] Exercising in hot, humid weather is one trigger. A high fever is another. People who sweat a lot or take medication that increases sweating may be especially vulnerable. Wearing tight clothes adds to the problem.

• #115 How to manage heat rash

  https://www.healthcert.com/blog/how-to-manage-heat-rash

  Heat rash (also known as prickly heat or miliaria) is a common problem, especially during hot and humid weather. […] Heat rash occurs when sweat gets trapped in the sweat ducts. This leads to inflammation and the appearance of tiny red bumps on the skin (miliaria rubra). […] For proper assessment, it is vital to take detailed history, including recent exposure to hot and humid environments, wearing tight clothing, and excessive sweating. […] Most cases of heat rash resolve with self-care measures within a few days to a week. However, GPs should advise patients to follow up if symptoms persist or worsen despite treatment. […] Referral to a dermatologist may be necessary for severe or recurrent cases that require further evaluation and management.

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