Wyprysk potowy (świerzb potowy)
Epidemiologia

Wyprysk potowy (miliaria) to schorzenie dermatologiczne wynikające z zablokowania gruczołów potowych, najczęściej występujące u noworodków i niemowląt, zwłaszcza w klimacie gorącym i wilgotnym. Miliaria crystallina dotyka około 4,5-9% noworodków do 2 tygodni życia, natomiast miliaria rubra występuje u około 4% noworodków w wieku 1-3 tygodni. Czynniki ryzyka obejmują m.in. gorący, wilgotny klimat, intensywną aktywność fizyczną, długotrwałe unieruchomienie, stany gorączkowe, stosowanie leków wywołujących pocenie oraz okluzyjne kosmetyki. Epidemiologia wskazuje na różnice geograficzne i etniczne, przy czym nie stwierdzono predylekcji płciowych.

Epidemiologia wyprysku potowego (świerzbu potowego)

Wyprysk potowy (świerzb potowy), znany również w terminologii medycznej jako miliaria, jest powszechnym schorzeniem dermatologicznym związanym z zablokowaniem gruczołów potowych. Choroba ta dotyka różne populacje, jednak występowanie poszczególnych typów miliarii może różnić się w zależności od wieku, warunków środowiskowych oraz innych czynników predysponujących.12

Występowanie w różnych grupach wiekowych

Schorzenie to może wystąpić u osób w każdym wieku, jednak niektóre grupy wiekowe są szczególnie narażone:34

  • Noworodki i niemowlęta – stanowią grupę szczególnie podatną na wystąpienie wyprysku potowego ze względu na niedojrzałe gruczoły potowe, które łatwiej ulegają zablokowaniu
  • Miliaria crystallina (sudamina) – najczęściej dotyka noworodków, z najwyższą częstością występowania u dzieci w wieku 2 tygodni lub młodszych. Szacuje się, że około 4,5-9% noworodków doświadcza tej formy wyprysku potowego56
  • Miliaria rubra (klasyczny świerzb potowy) – najczęstsza forma wyprysku potowego, występująca u noworodków w wieku 1-3 tygodni. Badanie przeprowadzone w Japonii wykazało, że miliaria rubra występuje u około 4% noworodków (średni wiek 11-14 dni)78

Rozpowszechnienie geograficzne i klimatyczne

Wyprysk potowy wykazuje wyraźne zależności geograficzne i klimatyczne:910

  • Obszary tropikalne i wilgotne – choroba jest szczególnie powszechna w klimacie gorącym i wilgotnym
  • Osoby aklimatyzujące się – do 30% osób, które przeprowadziły się z klimatu umiarkowanego do tropikalnego, może doświadczyć miliaria rubra1112
  • Personel wojskowywyprysk potowy stanowił istotny problem medyczny dla amerykańskiego i europejskiego personelu wojskowego służącego w Azji Południowo-Wschodniej i na Pacyfiku13

Badania epidemiologiczne

Dostępne dane epidemiologiczne dostarczają cennych informacji na temat częstości występowania wyprysku potowego w różnych populacjach:14

  • Japońskie badanie z 1986 roku obejmujące ponad 5000 noworodków wykazało obecność miliaria crystallina u 4,5% badanych (średni wiek 1 tydzień) oraz miliaria rubra u 4% (średni wiek 11-14 dni)15
  • Badanie przeprowadzone w Iranie w 2006 roku wykazało 1,3% częstość występowania miliarii u noworodków16
  • Badanie wśród pacjentów pediatrycznych w północno-wschodnich Indiach wykazało 1,6% częstość występowania miliarii17
  • Przekrojowe badanie szpitalne przeprowadzone wśród 150 pacjentów z dermatozami wywołanymi poceniem w miesiącach letnich w Puducherry w Indiach wykazało, że 84,1% miało miliaria rubra, 4,6% miliaria pustulosa, 3,3% miliaria profunda, a 2,6% miliaria crystallina18

Różnice etniczne i płciowe

Literatura medyczna wskazuje na pewne różnice w epidemiologii wyprysku potowego związane z pochodzeniem etnicznym i płcią:1920

  • Wyprysk potowy występuje u osób wszystkich ras, płci i grup etnicznych
  • Niektóre badania sugerują, że osoby pochodzenia azjatyckiego, które produkują mniej potu niż osoby rasy białej, są mniej podatne na rozwój miliaria rubra21
  • Nie stwierdzono predylekcji płciowych dla miliarii – schorzenie dotyka kobiety i mężczyzn z podobną częstotliwością22

Nadzór nad wypryskiem potowym

Nadzór nad wypryskiem potowym obejmuje monitorowanie czynników ryzyka, komplikacji oraz wdrażanie odpowiednich działań profilaktycznych i terapeutycznych.2324

Czynniki ryzyka

Identyfikacja czynników zwiększających ryzyko wystąpienia wyprysku potowego jest kluczowym elementem nadzoru epidemiologicznego:2526

  • Warunki klimatyczne – gorący i wilgotny klimat znacząco zwiększa ryzyko wystąpienia schorzenia
  • Wiek – bycie noworodkiem z niedojrzałymi przewodami potowymi
  • Aktywność fizyczna – intensywny wysiłek fizyczny zwiększający pocenie
  • Długotrwałe przebywanie w łóżku – unieruchomienie w łóżku przez dłuższy czas
  • Gorączka – stany gorączkowe zwiększające pocenie
  • Skłonność do intensywnego pocenia się
  • Farmakoterapia – przyjmowanie leków wywołujących pocenie, takich jak betanechol, klonidyna i neostygmina
  • Uwarunkowania genetycznezespół Morvana (rzadkie zaburzenie genetyczne powodujące nadmierne pocenie) oraz pseudohipoaldosteronizm typu 1 (stan powodujący utratę sodu przez gruczoły potowe)
  • Stosowanie okluzyjnych produktów kosmetycznych – ciężkie, zatykające pory kosmetyki zwiększają ryzyko wystąpienia wyprysku potowego27

Monitorowanie i ocena ryzyka powikłań

Wyprysk potowy wymaga monitorowania ze względu na możliwość rozwoju powikłań:2829

  • Infekcje wtórne – w przypadku drapania zmian lub nieprawidłowej higieny może dojść do wtórnego zakażenia bakteryjnego
  • Miliaria pustulosa – zakażona postać wyprysku potowego, która może wymagać antybiotykoterapii3031
  • Zaburzenia termoregulacji – powtarzające się epizody wyprysku potowego mogą prowadzić do upośledzenia funkcji gruczołów potowych i w konsekwencji do zaburzeń termoregulacji
  • Wyczerpanie cieplne – długotrwałe zaburzenia wydzielania potu mogą prowadzić do przegrzania organizmu i wyczerpania cieplnego3233
  • Zmiany pigmentacyjne – u osób z ciemniejszym odcieniem skóry może dojść do hipopigmentacji lub hiperpigmentacji pozapalnej (zmiany te zwykle ustępują w ciągu tygodni lub miesięcy)34

Wskazania do konsultacji medycznej

W ramach nadzoru nad wypryskiem potowym należy zidentyfikować sytuacje wymagające interwencji lekarskiej:353637

  • Brak poprawy po kilku dniach stosowania domowych metod leczenia
  • Wystąpienie gorączki lub dreszczy
  • Nasilenie bólu, obrzęk, zaczerwienienie
  • Obecność wysięku ropnego z wykwitów
  • Rozprzestrzenianie się wysypki na inne obszary ciała
  • Pojawienie się wyprysku potowego u niemowlęcia

Działania profilaktyczne

Skuteczny nadzór nad wypryskiem potowym obejmuje szeroko zakrojone działania profilaktyczne:383940

  • Kontrola temperatury otoczenia – unikanie nadmiernego ciepła i wilgotności
  • Odpowiednia odzież – noszenie luźnych, przewiewnych ubrań z naturalnych materiałów, szczególnie w przypadku dzieci
  • Unikanie przegrzania – ograniczenie aktywności fizycznej w gorących i wilgotnych warunkach
  • Higiena skóry – regularne kąpiele w chłodnej wodzie
  • Unikanie produktów okluzyjnych – niestosowanie kremów, maści i produktów na bazie olejów, które mogą blokować gruczoły potowe
  • Chłodne kąpiele – kąpiel w basenie lub chłodny prysznic mogą zapobiec nadmiernemu poceniu się41
  • Eksperymentalne zastosowanie miejscowych środków antyseptycznych – niektóre badania wskazują, że miejscowe stosowanie heksachlorofenu może niemal całkowicie zapobiegać wysypkom związanym z wypryskiem potowym42

Postępowanie terapeutyczne

W ramach nadzoru nad wypryskiem potowym ważne jest również odpowiednie postępowanie terapeutyczne:434445

  • Ochładzanie skóry – przebywanie w chłodnym, klimatyzowanym pomieszczeniu, stosowanie zimnych kompresów
  • Utrzymywanie suchej skóry – regularne osuszanie skóry, unikanie nadmiernej wilgotności
  • Miejscowe środki przeciwświądowe – stosowanie preparatów zawierających kalaminę, aloes, mentol, kamforę, olejek eukaliptusowy i podobne składniki łagodzące świąd
  • Kortykosteroidy miejscowe – kremy lub maści kortykosteroidowe mogą pomóc w redukcji świądu i stanu zapalnego
  • Leki przeciwhistaminowe – mogą być zalecane do łagodzenia świądu
  • Antybiotykoterapia – w przypadku wtórnego zakażenia bakteryjnego może być konieczne zastosowanie antybiotyków

W większości przypadków wyprysk potowy ustępuje samoistnie w ciągu kilku dni po zapewnieniu odpowiednich warunków środowiskowych, bez konieczności stosowania specjalistycznego leczenia.464748

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  1. 10.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Miliaria – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/sites/books/NBK537176/
    Miliaria frequently affects neonates and adults with increased sweating, as well as individuals living in hot and humid climates. While miliaria can occur in both genders and across all ethnicities, each type may be more common in specific populations. […] Miliaria crystalline: This condition is also known as sudamina, and it commonly affects neonates, with the highest incidence observed at 2 weeks of age or younger. The rash affects approximately 4.5% to 9% of neonates. However, it can also occur in adults who have recently relocated to a warmer climate. […] Miliaria rubra: This is the most common form of miliaria and is frequently observed in neonates between 1 and 3 weeks of age. This condition can also affect up to 30% of adults living in hot and humid conditions. […] Miliaria profunda: This is the rarest form of miliaria, most commonly seen in individuals with recurrent episodes of miliaria rubra or individuals exposed to new warm climates, such as military personnel deployed in tropical climates.
  • #2 Heat rash – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/heat-rash/symptoms-causes/syc-20373276
    Heat rash also known as prickly heat and miliaria isn’t just for babies. It affects adults, too, especially in hot, humid conditions. […] 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. […] Factors that increase the risk of heat rash include: Being a newborn, as newborns have immature sweat ducts; Living in a hot, humid climate; Being physically active; Being on bedrest for a long time and having a fever. […] Heat rash usually heals without scarring. People with brown or Black skin are at risk of spots of skin that get lighter or darker in response to inflammatory skin conditions (postinflammatory hypopigmentation or hyperpigmentation). These changes usually go away within weeks or months.
  • #3 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. […] Skin conditions like heat rash or prickly heat (miliaria) can develop in anyone at any age. However, it is most common in children and babies, as their immature sweat glands are more prone to becoming blocked. […] Up to 3 in 10 people who travel to a warmer climate and who sweat a lot may be affected by miliaria. […] Heat rash can also occur in cooler climates when sweating is a problem.
  • #4 Heat rash (Miliaria): Images, Causes, and Treatment – DermNet NZ
    https://dermnetnz.org/topics/miliaria
    Miliaria is frequently seen in hot, humid, or tropical climates, in patients in hospital, and in the neonatal period. […] Miliaria rubra is the most common type of heat rash. It is seen in children and in up to 30% of adults who move to a tropical environment or are unexpectedly exposed to heat and humidity. […] Heat rash can affect all age groups and racial groups. […] Heat rash is diagnosed on its typical clinical presentation. […] Most cases of heat rash resolve within a day or two after changing to a cooler environment without any treatment or complications.
  • #5 Miliaria – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/sites/books/NBK537176/
    Miliaria frequently affects neonates and adults with increased sweating, as well as individuals living in hot and humid climates. While miliaria can occur in both genders and across all ethnicities, each type may be more common in specific populations. […] Miliaria crystalline: This condition is also known as sudamina, and it commonly affects neonates, with the highest incidence observed at 2 weeks of age or younger. The rash affects approximately 4.5% to 9% of neonates. However, it can also occur in adults who have recently relocated to a warmer climate. […] Miliaria rubra: This is the most common form of miliaria and is frequently observed in neonates between 1 and 3 weeks of age. This condition can also affect up to 30% of adults living in hot and humid conditions. […] Miliaria profunda: This is the rarest form of miliaria, most commonly seen in individuals with recurrent episodes of miliaria rubra or individuals exposed to new warm climates, such as military personnel deployed in tropical climates.
  • #6 Miliaria Crystallina and Rubra miliaria sudamina, prickly heat, heat rash – Dermatology Advisor
    https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/miliaria-crystallina-and-rubra-miliaria-sudamina-prickly-heat-heat-rash/
    Miliaria crystallina is primarily a disorder of the neonate with a peak incidence around the 6th or 7th postnatal day. […] Miliaria rubra affects 0.3 4% of neonates, with a peak occurrence at 11 to 14 days of life, but may be seen in adults who live in hot, humid conditions. […] No race or sex predilection is recognized for miliaria.
  • #7 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #8 Heat Rash in Children: Symptoms and Treatment
    https://www.verywellhealth.com/heat-rash-information-pediatrics-2633480
    Miliaria Rubra (Prickly Heat): Prickly heat or miliaria rubra is the most common type of heat rash, being found in 4% of newborns, and up to 30% of children at some time. […] Miliaria Crystallina: Just like prickly heat, this type of heat rash occurs when the sweat ducts become blocked and rupture. […] Miliaria Profunda: Miliaria profunda is the term that is used to describe a slightly deeper heat rash. […] Miliaria Pustulosa (Infected Heat Rash): Miliaria pustulosa is the name that pediatricians give to a heat rash that gets infected. […] Antibodies may be needed for secondary infections as occur in miliaria pustulosa. […] Most methods of preventing heat rash have the goal of not allowing your child to get overheated and include: Dressing your child in weather-appropriate, loose-fitting clothing, so that they don’t get overheated. […] Avoiding excessive heat and humidity when possible. […] Avoiding occlusive ointments, including moisturizers, or oil-based products on a child’s skin, which can also block the sweat ducts.
  • #9 Content – Health Encyclopedia – University of Rochester Medical Center
    https://www.urmc.rochester.edu/encyclopedia/content?contenttypeid=85&contentid=P00307
    Prickly heat tends to be more common in hot, humid climates. […] 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. You can do this by keeping your skin cool and dry. […] Treatment may also include corticosteroid cream or lotion to help reduce itching and inflammation.
  • #10 Prickly Heat
    https://healthlibrary.osfhealthcare.org/Search/85,P00307
    Prickly heat tends to be more common in hot, humid climates. […] 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. You can do this by keeping your skin cool and dry.
  • #11 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #12 Heat rash (Miliaria): Images, Causes, and Treatment – DermNet NZ
    https://dermnetnz.org/topics/miliaria
    Miliaria is frequently seen in hot, humid, or tropical climates, in patients in hospital, and in the neonatal period. […] Miliaria rubra is the most common type of heat rash. It is seen in children and in up to 30% of adults who move to a tropical environment or are unexpectedly exposed to heat and humidity. […] Heat rash can affect all age groups and racial groups. […] Heat rash is diagnosed on its typical clinical presentation. […] Most cases of heat rash resolve within a day or two after changing to a cooler environment without any treatment or complications.
  • #13 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #14 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #15 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #16 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #17 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #18 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina is a common condition that occurs in neonates (peak age, 1 wk) and in individuals who are febrile or who have recently moved to a hot, humid climate. Miliaria rubra also is common in infants and adults who move to a tropical environment; this form occurs in as many as 30% of persons exposed to such conditions. Miliaria profunda is a rarer condition that occurs in only a minority of those who have repeated bouts of miliaria rubra. […] Worldwide, miliaria is most common in tropical environments, especially among people who recently moved to such environments from more temperate zones. Miliaria has been a significant problem for American and European military personnel who serve in Southeast Asia and the Pacific. […] A 1986 Japanese survey that included more than 5000 neonates revealed that miliaria crystallina was present in 4.5% (mean age, 1 wk) and that miliaria rubra was present in 4% (mean age, 11-14 d). A 2006 survey study from Iran found a 1.3% incidence of miliaria in newborns. A survey of pediatric patients in Northeastern India reported a 1.6% incidence of miliaria. A hospital-based cross-sectional study of 150 patients presenting with sweat-induced dermatoses during the summer months in Puducherry, India, found that 84.1% had miliaria rubra, 4.6% had miliaria pustulosa, 3.3% had miliaria profunda, and 2.6% had miliaria crystallina.
  • #19 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina and miliaria rubra can occur in persons of any age, but the diseases are most common in infants. A few cases of congenital miliaria crystallina have been reported. Miliaria profunda is more common in adults than in infants and children. […] Miliaria occurs in individuals of all races, though some studies have found that Asians, who produce less sweat than Whites on average, are less likely to have miliaria rubra.
  • #20 Miliaria Crystallina and Rubra miliaria sudamina, prickly heat, heat rash – Dermatology Advisor
    https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/miliaria-crystallina-and-rubra-miliaria-sudamina-prickly-heat-heat-rash/
    Miliaria crystallina is primarily a disorder of the neonate with a peak incidence around the 6th or 7th postnatal day. […] Miliaria rubra affects 0.3 4% of neonates, with a peak occurrence at 11 to 14 days of life, but may be seen in adults who live in hot, humid conditions. […] No race or sex predilection is recognized for miliaria.
  • #21 Miliaria: Background, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/1070840-overview
    Miliaria crystallina and miliaria rubra can occur in persons of any age, but the diseases are most common in infants. A few cases of congenital miliaria crystallina have been reported. Miliaria profunda is more common in adults than in infants and children. […] Miliaria occurs in individuals of all races, though some studies have found that Asians, who produce less sweat than Whites on average, are less likely to have miliaria rubra.
  • #22 Miliaria Crystallina and Rubra miliaria sudamina, prickly heat, heat rash – Dermatology Advisor
    https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/miliaria-crystallina-and-rubra-miliaria-sudamina-prickly-heat-heat-rash/
    Miliaria crystallina is primarily a disorder of the neonate with a peak incidence around the 6th or 7th postnatal day. […] Miliaria rubra affects 0.3 4% of neonates, with a peak occurrence at 11 to 14 days of life, but may be seen in adults who live in hot, humid conditions. […] No race or sex predilection is recognized for miliaria.
  • #23 10 Effective Home Remedies for Heat Rashes: When to Seek Help from Urgent Care in Southington, CT
    https://docsmedicalgroup.com/docsurgentcare/10-effective-home-remedies-for-heat-rashes-when-to-seek-help-from-urgent-care-in-southington-ct/
    Heat rashes, or prickly heat or miliaria, are common skin conditions when sweat becomes trapped in the sweat ducts beneath the skin. Heat rashes are particularly prevalent in hot, humid environments and can affect people of all ages, especially those who are active or wearing tight clothing. […] Addressing heat rashes promptly is crucial to avoid complications such as infections. […] Urgent care in Southington, CT, can provide the needed assistance. […] If the rash does not improve after several days of home treatment, medical intervention may be needed. Visiting urgent care in Southington, CT, can help you get the necessary treatment. […] Symptoms such as increased pain, swelling, redness, or pus indicate an infection that requires medical attention. Urgent care in Southington, CT, can provide the appropriate antibiotics or other treatments.
  • #24 Patient Describes Heat Rash Treatment with Deep Oscillation | PhysioPod UK Ltd | Exclusive UK & Ireland Suppliers | Deep Oscillation
    https://www.physiopod.co.uk/patient-describes-heat-rash-treatment-with-deep-oscillation.shtml
    Heat rash, also known as prickly heat or miliaria, is a common skin condition that occurs when sweat gets trapped beneath the skin. It often happens in hot and humid weather conditions or when the sweat glands become blocked. Heat rash appears as clusters of small, red, itchy bumps on the skin. […] Heat rash typically affects areas where skin-to-skin contact occurs or where clothing traps sweat, such as the neck, chest, underarms, groin, or back. It can be uncomfortable and itchy, but it is generally not a serious condition and resolves on its own once the skin cools down and sweat is able to evaporate. […] If discomfort persists or if the rash becomes infected, it is advisable to seek medical advice from a healthcare professional. […] Heat rash itself is not typically a direct cause of infection.
  • #25 Heat rash – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/heat-rash/symptoms-causes/syc-20373276
    Heat rash also known as prickly heat and miliaria isn’t just for babies. It affects adults, too, especially in hot, humid conditions. […] 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. […] Factors that increase the risk of heat rash include: Being a newborn, as newborns have immature sweat ducts; Living in a hot, humid climate; Being physically active; Being on bedrest for a long time and having a fever. […] Heat rash usually heals without scarring. People with brown or Black skin are at risk of spots of skin that get lighter or darker in response to inflammatory skin conditions (postinflammatory hypopigmentation or hyperpigmentation). These changes usually go away within weeks or months.
  • #26 Heat Rash: Treatment, Symptoms, Causes, and More
    https://www.healthline.com/health/heat-rash-pictures-remedies
    Heat rash is a skin condition that often affects children and adults in hot, humid weather conditions. You can develop heat rash when your pores become blocked and sweat cant escape. […] This type, or prickly heat, is more common in adults than in children and babies. Miliaria rubra is known to cause more discomfort than miliaria crystallina because it occurs deeper in the outer layer of the skin. […] 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. […] Having certain health problems or engaging in certain lifestyle choices can increase your risk for heat rash, including: being prone to intense sweating, regularly engaging in high-intensity physical activity, taking drugs that trigger sweating like bethanechol, clonidine, and neostigmine, Morvan syndrome, a rare genetic disorder that causes excessive sweating, type 1 pseudohypoaldosteronism, a condition that causes a loss of sodium through the sweat glands that has some links to heat rash.
  • #27 How to stop prickly heat and heat rash from ruining your summer – Get the Gloss
    https://www.getthegloss.com/beauty/skincare/sense-and-sensitivity-how-to-stop-prickly-heat/
    If heat rash is making life a living hell, read on for the experts (and sufferers) advice on what causes prickly heat, how to get rid of heat rash and how to keep your cool with these remedies and treatments. […] It is very common (up to 30 per cent of people may develop this under certain conditions) and is most common in hot, humid climates, says Dr Williams. […] The risk of getting it can also be increased if you use heavy, occluding skincare. […] You dont have to have a history of prickly heat to get it, either it can happen at any time if youre in the right (or should I say wrong) conditions. […] The key thing here is to keep your cool; easier said than done in heat waves but essential to keep those little bumps at bay. […] Prevention includes, most importantly, avoiding sweating as much as possible.
  • #28 10 Effective Home Remedies for Heat Rashes: When to Seek Help from Urgent Care in Southington, CT
    https://docsmedicalgroup.com/docsurgentcare/10-effective-home-remedies-for-heat-rashes-when-to-seek-help-from-urgent-care-in-southington-ct/
    Heat rashes, or prickly heat or miliaria, are common skin conditions when sweat becomes trapped in the sweat ducts beneath the skin. Heat rashes are particularly prevalent in hot, humid environments and can affect people of all ages, especially those who are active or wearing tight clothing. […] Addressing heat rashes promptly is crucial to avoid complications such as infections. […] Urgent care in Southington, CT, can provide the needed assistance. […] If the rash does not improve after several days of home treatment, medical intervention may be needed. Visiting urgent care in Southington, CT, can help you get the necessary treatment. […] Symptoms such as increased pain, swelling, redness, or pus indicate an infection that requires medical attention. Urgent care in Southington, CT, can provide the appropriate antibiotics or other treatments.
  • #29 Heat Rash: Treatment, Symptoms, Causes, and More
    https://www.healthline.com/health/heat-rash-pictures-remedies
    Heat rash is rarely serious. Often, it goes away without treatment in a few days. But you should call your doctor if you begin to experience: a fever, chills, increased pain, pus draining from the bumps. […] Follow these tips to prevent heat rash: Avoid wearing tight clothing that doesnt allow your skin to breathe. Moisture-wicking fabrics may help prevent sweat buildup on the skin.
  • #30 Heat Rash in Children: Symptoms and Treatment
    https://www.verywellhealth.com/heat-rash-information-pediatrics-2633480
    Miliaria Rubra (Prickly Heat): Prickly heat or miliaria rubra is the most common type of heat rash, being found in 4% of newborns, and up to 30% of children at some time. […] Miliaria Crystallina: Just like prickly heat, this type of heat rash occurs when the sweat ducts become blocked and rupture. […] Miliaria Profunda: Miliaria profunda is the term that is used to describe a slightly deeper heat rash. […] Miliaria Pustulosa (Infected Heat Rash): Miliaria pustulosa is the name that pediatricians give to a heat rash that gets infected. […] Antibodies may be needed for secondary infections as occur in miliaria pustulosa. […] Most methods of preventing heat rash have the goal of not allowing your child to get overheated and include: Dressing your child in weather-appropriate, loose-fitting clothing, so that they don’t get overheated. […] Avoiding excessive heat and humidity when possible. […] Avoiding occlusive ointments, including moisturizers, or oil-based products on a child’s skin, which can also block the sweat ducts.
  • #31 Heat rash – treatments, symptoms and causes | healthdirect
    https://www.healthdirect.gov.au/heat-rash
    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. […] Heat rash (prickly heat or miliaria) is little spots on the skin. It might appear if your child overheats. Prevent and treat by keeping your child cool. […] Heat rash happens when your sweat glands become blocked. […] Heat rash is common in babies, and in people who are adjusting to warmer temperatures. […] Heat rash happens when your sweat ducts become blocked or inflamed due to heat and high humidity. […] If your heat rash becomes infected, you may need antibiotics. […] If you get heat rash repeatedly, this can prevent you from sweating properly, and can lead to heat exhaustion.
  • #32 Prickly Heat | Encyclopedia.com
    https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/prickly-heat
    Heat rash may be treated with topical antipruritics (itch relievers) containing calamine, aloe, menthol, camphor, eucalyptus oil, and similar ingredients. […] Because the body cannot cool itself adequately without sweating, careful monitoring for symptoms of heat exhaustion is important, especially in infants or the elderly. […] Experimental application of topical antiseptics such as hexachlorophene almost completely prevent the rashes of prickly heat.
  • #33 Heat rash – treatments, symptoms and causes | healthdirect
    https://www.healthdirect.gov.au/heat-rash
    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. […] Heat rash (prickly heat or miliaria) is little spots on the skin. It might appear if your child overheats. Prevent and treat by keeping your child cool. […] Heat rash happens when your sweat glands become blocked. […] Heat rash is common in babies, and in people who are adjusting to warmer temperatures. […] Heat rash happens when your sweat ducts become blocked or inflamed due to heat and high humidity. […] If your heat rash becomes infected, you may need antibiotics. […] If you get heat rash repeatedly, this can prevent you from sweating properly, and can lead to heat exhaustion.
  • #34 Heat rash – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/heat-rash/symptoms-causes/syc-20373276
    Heat rash also known as prickly heat and miliaria isn’t just for babies. It affects adults, too, especially in hot, humid conditions. […] 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. […] Factors that increase the risk of heat rash include: Being a newborn, as newborns have immature sweat ducts; Living in a hot, humid climate; Being physically active; Being on bedrest for a long time and having a fever. […] Heat rash usually heals without scarring. People with brown or Black skin are at risk of spots of skin that get lighter or darker in response to inflammatory skin conditions (postinflammatory hypopigmentation or hyperpigmentation). These changes usually go away within weeks or months.
  • #35 10 Effective Home Remedies for Heat Rashes: When to Seek Help from Urgent Care in Southington, CT
    https://docsmedicalgroup.com/docsurgentcare/10-effective-home-remedies-for-heat-rashes-when-to-seek-help-from-urgent-care-in-southington-ct/
    Heat rashes, or prickly heat or miliaria, are common skin conditions when sweat becomes trapped in the sweat ducts beneath the skin. Heat rashes are particularly prevalent in hot, humid environments and can affect people of all ages, especially those who are active or wearing tight clothing. […] Addressing heat rashes promptly is crucial to avoid complications such as infections. […] Urgent care in Southington, CT, can provide the needed assistance. […] If the rash does not improve after several days of home treatment, medical intervention may be needed. Visiting urgent care in Southington, CT, can help you get the necessary treatment. […] Symptoms such as increased pain, swelling, redness, or pus indicate an infection that requires medical attention. Urgent care in Southington, CT, can provide the appropriate antibiotics or other treatments.
  • #36 Heat Rash: Treatment, Symptoms, Causes, and More
    https://www.healthline.com/health/heat-rash-pictures-remedies
    Heat rash is rarely serious. Often, it goes away without treatment in a few days. But you should call your doctor if you begin to experience: a fever, chills, increased pain, pus draining from the bumps. […] Follow these tips to prevent heat rash: Avoid wearing tight clothing that doesnt allow your skin to breathe. Moisture-wicking fabrics may help prevent sweat buildup on the skin.
  • #37 Heat rash (prickly heat) | Health Information from Mediclinic Pharmacy
    https://mediclinicpharmacy.com/nhs_conditions_heat-rash-prickly-heat
    Heat rash (prickly heat) Check if you have heat rash The symptoms of heat rash are: small, raised spots, an itchy, prickly feeling, mild swelling. The rash looks red on white skin. It may be harder to see or look grey or white on brown or black skin. The symptoms of heat rash are often the same in adults and children. It can appear anywhere on the body and spread, but it cannot be passed on to other people. 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. […] Speak to a pharmacist about heat rash. They can give advice and suggest the best treatment to use. A pharmacist might recommend: calamine lotion, antihistamine tablets, hydrocortisone cream though not for children under 10 as you’ll need to get advice from a doctor before giving them this treatment. […] See a GP if: you have heat rash that does not improve after a few days, your baby has a rash and you’re worried.
  • #38 Heat Rash in Children: Symptoms and Treatment
    https://www.verywellhealth.com/heat-rash-information-pediatrics-2633480
    Miliaria Rubra (Prickly Heat): Prickly heat or miliaria rubra is the most common type of heat rash, being found in 4% of newborns, and up to 30% of children at some time. […] Miliaria Crystallina: Just like prickly heat, this type of heat rash occurs when the sweat ducts become blocked and rupture. […] Miliaria Profunda: Miliaria profunda is the term that is used to describe a slightly deeper heat rash. […] Miliaria Pustulosa (Infected Heat Rash): Miliaria pustulosa is the name that pediatricians give to a heat rash that gets infected. […] Antibodies may be needed for secondary infections as occur in miliaria pustulosa. […] Most methods of preventing heat rash have the goal of not allowing your child to get overheated and include: Dressing your child in weather-appropriate, loose-fitting clothing, so that they don’t get overheated. […] Avoiding excessive heat and humidity when possible. […] Avoiding occlusive ointments, including moisturizers, or oil-based products on a child’s skin, which can also block the sweat ducts.
  • #39 How to stop prickly heat and heat rash from ruining your summer – Get the Gloss
    https://www.getthegloss.com/beauty/skincare/sense-and-sensitivity-how-to-stop-prickly-heat/
    If heat rash is making life a living hell, read on for the experts (and sufferers) advice on what causes prickly heat, how to get rid of heat rash and how to keep your cool with these remedies and treatments. […] It is very common (up to 30 per cent of people may develop this under certain conditions) and is most common in hot, humid climates, says Dr Williams. […] The risk of getting it can also be increased if you use heavy, occluding skincare. […] You dont have to have a history of prickly heat to get it, either it can happen at any time if youre in the right (or should I say wrong) conditions. […] The key thing here is to keep your cool; easier said than done in heat waves but essential to keep those little bumps at bay. […] Prevention includes, most importantly, avoiding sweating as much as possible.
  • #40 Patient Describes Heat Rash Treatment with Deep Oscillation | PhysioPod UK Ltd | Exclusive UK & Ireland Suppliers | Deep Oscillation
    https://www.physiopod.co.uk/patient-describes-heat-rash-treatment-with-deep-oscillation.shtml
    It’s important to avoid scratching the affected area to reduce the risk of infection. Keeping the skin clean and dry, wearing loose-fitting clothing, and staying in a cool environment can help prevent heat rash and minimize the chances of infection. […] Deep oscillation therapy is not typically used as a specific treatment for heat rash. Heat rash is a mild and self-limiting condition that usually resolves on its own with simple home remedies. […] If your symptoms worsen, persist, or show signs of infection, it is important to seek medical advice from a healthcare professional or dermatologist. They can provide a proper diagnosis, offer appropriate treatment recommendations, and rule out any other underlying conditions. […] Deep Oscillation may potentially help with heat rash by increasing circulation and lymphatic flow, which can aid in the removal of excess sweat and toxins from blocked sweat glands. By reducing inflammation, it may also alleviate the itching and discomfort associated with heat rash. […] However, it’s important to note that individual responses to treatment can vary, and it’s always best to consult with a healthcare professional or dermatologist for a proper diagnosis and guidance on the most suitable treatment options for your specific case of heat rash.
  • #41 How to stop prickly heat and heat rash from ruining your summer – Get the Gloss
    https://www.getthegloss.com/beauty/skincare/sense-and-sensitivity-how-to-stop-prickly-heat/
    A dip in the pool or cool shower can stop sweating, explains Dr Bunting, and avoid sticky skincare and sunscreens, which will have an occlusive effect on skin by trapping sweat. […] Knowing my own sensitivities, I was nervous to try it myself, but found that using the sensitive version on a recent holiday to Malta proved helpful in at least minimising the rash. […] The million dollar question. Given that the cause is the bodys natural response to the heat, its very difficult to manage which is no doubt why it causes so much stress to so many people. […] So youve tried your best, but the rash has still appeared. What to do? Well if prevention is difficult, treatment is a pain when it comes to prickly heat everyone has their own answers but ultimately, its hard to get rid of once the rash begins.
  • #42 Prickly Heat | Encyclopedia.com
    https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/prickly-heat
    Heat rash may be treated with topical antipruritics (itch relievers) containing calamine, aloe, menthol, camphor, eucalyptus oil, and similar ingredients. […] Because the body cannot cool itself adequately without sweating, careful monitoring for symptoms of heat exhaustion is important, especially in infants or the elderly. […] Experimental application of topical antiseptics such as hexachlorophene almost completely prevent the rashes of prickly heat.
  • #43 Content – Health Encyclopedia – University of Rochester Medical Center
    https://www.urmc.rochester.edu/encyclopedia/content?contenttypeid=85&contentid=P00307
    Prickly heat tends to be more common in hot, humid climates. […] 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. You can do this by keeping your skin cool and dry. […] Treatment may also include corticosteroid cream or lotion to help reduce itching and inflammation.
  • #44 Prickly Heat
    https://healthlibrary.osfhealthcare.org/Search/85,P00307
    Prickly heat tends to be more common in hot, humid climates. […] 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. You can do this by keeping your skin cool and dry.
  • #45 Prickly Heat | Encyclopedia.com
    https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/prickly-heat
    Heat rash may be treated with topical antipruritics (itch relievers) containing calamine, aloe, menthol, camphor, eucalyptus oil, and similar ingredients. […] Because the body cannot cool itself adequately without sweating, careful monitoring for symptoms of heat exhaustion is important, especially in infants or the elderly. […] Experimental application of topical antiseptics such as hexachlorophene almost completely prevent the rashes of prickly heat.
  • #46 Summer rashes | University of Iowa Health Care
    https://uihc.org/health-topics/summer-rashes
    Heat rash is a red or pink rash usually found on body areas covered by clothing. […] Heat rash usually goes away on its own within a day or two when your skin cools down, and a hydrocortisone cream can help alleviate any discomfort in the meantime. […] If it doesn’t go away after three or four days, or if it appears to be getting worse, it’s not a heat rash and you should immediately contact your doctor.
  • #47 Heat rash (Miliaria): Images, Causes, and Treatment – DermNet NZ
    https://dermnetnz.org/topics/miliaria
    Miliaria is frequently seen in hot, humid, or tropical climates, in patients in hospital, and in the neonatal period. […] Miliaria rubra is the most common type of heat rash. It is seen in children and in up to 30% of adults who move to a tropical environment or are unexpectedly exposed to heat and humidity. […] Heat rash can affect all age groups and racial groups. […] Heat rash is diagnosed on its typical clinical presentation. […] Most cases of heat rash resolve within a day or two after changing to a cooler environment without any treatment or complications.
  • #48 When Your Child Has Heat Rash (Prickly Heat) | Saint Luke’s Health System
    https://www.saintlukeskc.org/health-library/when-your-child-has-heat-rash-prickly-heat
    Heat rash (also called prickly heat) is a common problem in children, especially babies. […] Heat rash is not serious. It can easily be treated at home. […] Heat rash is caused by blocked sweat glands. […] Heat rash can cause parts of the skin to turn red and develop small bumps. The skin can also itch. […] Heat rash is diagnosed by how it looks. […] In most cases, heat rash doesn’t need treatment. It often goes away on its own within 2 to 3 days. […] Call your child’s healthcare provider if any of the following occur: A heat rash that doesnt go away within 3 days of starting treatment. […] You can help prevent your child from getting a heat rash.