Materiały źródłowe

• #1 Swimmer’s Itch – Isle Royale National Park (U.S. National Park Service)

  https://www.nps.gov/isro/planyourvisit/swimmers-itch.htm

  Swimmers itch (cercarial dermatitis) is a skin rash caused by an allergic reaction to certain microscopic parasites that infect some birds and mammals. These parasites are released from infected snails into water. If the parasite comes into contact with a human, it sometimes burrows into the skin causing an allergic reaction and rash. […] Within minutes to days after swimming in infested water, swimmers may experience tingling, burning, or itching of the skin. Within twelve hours, small reddish pimples appear, which may develop into small blisters. Because swimmers itch is caused by an allergic reaction, the more you swim or wade in infested waters, the more likely it is symptoms will develop. The greater number of exposures to infested water will result in more intense and immediate symptoms. Swimmers itch usually only affects exposed skin not covered by swimsuits or wetsuits. […] Swimmer’s itch usually clears up on its own within a week.

• #2 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #3 About Swimmer’s Itch | Swimmer’s Itch (Cercarial Dermatitis) | CDC

  https://www.cdc.gov/swimmers-itch/about/index.html

  Swimmers itch, also called cercarial dermatitis, appears as a skin rash caused by an allergic reaction to certain microscopic parasites that infect some birds and mammals. […] Symptoms can include tingling, burning, or itching of the skin. […] Within minutes to days after swimming in contaminated water, you may experience tingling, burning, or itching of the skin. Small reddish pimples appear within twelve hours. Pimples may develop into small blisters. […] Because swimmers itch is caused by an allergic reaction to infection, the more often you swim or wade in contaminated water, the more likely you are to develop more serious symptoms. The greater the number of exposures to contaminated water, the more intense and immediate symptoms of swimmers itch will be. […] Itching may last up to a week or more but will gradually go away.

• #4 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #5 Swimmer’s itch – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/swimmers-itch/symptoms-causes/syc-20355043

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Swimmer’s itch usually clears on its own within a few days. In the meantime, you can control itching with medicine.

• #6 Clinical Treatment of Swimmer’s Itch | Swimmer’s Itch (Cercarial Dermatitis) | CDC

  https://www.cdc.gov/swimmers-itch/hcp/clinical-care/index.html

  Signs and symptoms of cercarial dermatitis usually resolve in 1 2 weeks. […] The allergic reaction to penetrating cercariae is self-limiting; signs and symptoms usually will resolve within 1 2 weeks.

• #7 Swimmer’s itch

  https://dermnetnz.org/topics/swimmers-itch

  Swimmers itch presents within hours of exposure after the film of water has dried on the skin. Initial symptoms are itch or a tingling sensation which settles quickly, leaving tiny red spots where skin penetration by the cercariae has occurred. Intense itch develops over a number of hours and the red spots can enlarge to form papules and, occasionally, hives. Blisters may develop over the next 24 to 48 hours. […] Swimmers itch usually resolves within 13 weeks without treatment. However, repeated exposures can result in severe reactions.

• #8 Swimmer’s itch

  https://dermnetnz.org/topics/swimmers-itch

  Swimmers itch presents within hours of exposure after the film of water has dried on the skin. Initial symptoms are itch or a tingling sensation which settles quickly, leaving tiny red spots where skin penetration by the cercariae has occurred. Intense itch develops over a number of hours and the red spots can enlarge to form papules and, occasionally, hives. Blisters may develop over the next 24 to 48 hours. […] Swimmers itch usually resolves within 13 weeks without treatment. However, repeated exposures can result in severe reactions.

• #9 Swimmer’s itch | HealthLink BC

  https://www.healthlinkbc.ca/healthlinkbc-files/swimmers-itch

  Symptoms can range from a mild irritation to a very severe, itchy red rash. Scratching can cause severe pain and swelling or cause your skin to become infected. The severity of your symptoms will depend on how many larvae get on to your skin, and how sensitive you are to them. Symptoms tend to be worse after repeat exposure. […] As you start to dry off and the larvae start to burrow into your skin, you may feel a tingling sensation. Small, pin sized red spots will appear, which grow into larger red rashes within several hours. As these red spots grow, the tingling feeling becomes a strong itch. […] A rash may appear within 12 hours after infection. The reaction may last from 2 to 5 days and symptoms can last as long as 2 weeks. […] Repeat infections are usually worse. People become more sensitive to the larvae and develop stronger responses each time.

• #10 Swimmer’s itch: Symptoms, causes, treatment, and more

  https://www.medicalnewstoday.com/articles/swimmers-itch

  Swimmers itch is the name for a skin rash that appears due to an allergic reaction to certain parasites. […] This can cause an allergic reaction, causing a rash to form. This rash is known as swimmers itch. […] The allergic reaction causes the person to develop a patchy, inflamed, pinpoint skin rash, known as swimmers itch. […] The American Osteopathic College of Dermatology notes that swimmers itch is not severe and often goes away without treatment after 1 week. In rare cases, it can affect a large portion of a persons body and become more severe. […] Common symptoms of swimmers itch include: a small rash on the skin, itchy skin, a tingling or burning sensation on the skin, small pimples, small blisters. […] According to the CDC, a person may experience tingling, burning, or itching of the skin within minutes or days of swimming in contaminated water.

• #11 Swimmer’s Itch or Cercarial Dermatitis

  https://www.webmd.com/skin-problems-and-treatments/what-to-know-about-swimmers-itch

  Most people, while describing their condition, will say they got a rash from lake water or a rash from swimming. Here are some of the most common symptoms of a swimmer’s itch. […] In a case of cercariae infection, you’re likely to experience an unusual tingling, burning, or itching sensation after a few minutes or days following a swimming session. Scratching will lead to a rash, which may lead to small blisters. Persistent scratching may result in other bacterial infections. However, the itching will subside after a few days or within a week. […] Even so, you may develop more severe symptoms if you often swim in contaminated water. The more you’re exposed to contaminated water, the more frequent and intense your case of swimmer’s itch can be. […] After you swim in contaminated water, you may notice small, red pimples within 12 hours. These spots may become blisters and will probably last around a week.

• #12

  https://www.healthychildren.org/English/tips-tools/symptom-checker/Pages/symptomviewer.aspx?symptom=Swimmer%27s+Itch+-+Lakes+and+Oceans

  Itchy skin rash […] Begins within 2 hours of swimming in a fresh water lake. It can also occur in salt water, although this is less common. […] The first symptom is itching or burning of the skin. […] Then small red spots appear within 1 or 2 hours. The spots appear at sites where a parasite has gotten into the skin. […] The spots turn into small red lumps over 1 or 2 days. […] The spots can be quite itchy for up to 7 days. The rash gradually fades away over 2 weeks. […] The rash cannot be spread to others. […] The rash is usually worse with each exposure. So, it’s very important to try to prevent recurrences. […] The spots turn into small red lumps over 1 to 2 days. […] The spots can be quite itchy for up to 7 days. […] The rash gradually fades away over 2 weeks.

• #13 Swimmer’s itch | HealthLink BC

  https://www.healthlinkbc.ca/healthlinkbc-files/swimmers-itch

  Symptoms can range from a mild irritation to a very severe, itchy red rash. Scratching can cause severe pain and swelling or cause your skin to become infected. The severity of your symptoms will depend on how many larvae get on to your skin, and how sensitive you are to them. Symptoms tend to be worse after repeat exposure. […] As you start to dry off and the larvae start to burrow into your skin, you may feel a tingling sensation. Small, pin sized red spots will appear, which grow into larger red rashes within several hours. As these red spots grow, the tingling feeling becomes a strong itch. […] A rash may appear within 12 hours after infection. The reaction may last from 2 to 5 days and symptoms can last as long as 2 weeks. […] Repeat infections are usually worse. People become more sensitive to the larvae and develop stronger responses each time.

• #14 Symptoms, Prevention and Treatment of Swimmer’s Itch – Higgins Lake Swimmer’s Itch Organization

  http://hlsio.org/itch-rx/

  Swimmers itch, also called cercarial dermatitis, appears as a skin rash caused by an allergic reaction to certain microscopic parasites that infect some birds and mammals. […] Within minutes to days after swimming in contaminated water, you may experience tingling, burning, or itching of the skin. Small reddish pimples appear within twelve hours. The rash is likely to appear only where the skin was directly exposed to the water and not under bathing suits or other clothing. Pimples may develop into small blisters. Itching may last up to a week or more, but will gradually go away. […] Swimmers itch is not contagious and cannot be spread from one person to another. Most cases of swimmers itch do not require medical attention.

• #15 What Is Swimmer’s Itch?

  https://www.verywellhealth.com/swimmers-itch-7151852

  The typical symptoms of swimmers itch include: Tingling, itching, or burning skin. Small discolored pimples. Small blisters. […] Symptoms of swimmer’s itch can start anywhere from a few minutes to a few days after you swim, but it often begins within two hours of swimming. The tingling, itching, or burning sensations start first, followed by pimples in about 12 hours. The pimples may develop into small blisters. You may be itchy for a week or longer. […] Swimmers itch is usually easy to identify from its symptoms and how it progresses (itching, pimples, and blisters). The rash only affects areas of skin that are directly in contact with the water and will not spread to other areas, even if you scratch it. Its most common in areas not covered by a swimsuit or wetsuit. […] Your first case of swimmer’s itch may last up to two weeks. If you avoid infection, it should clear up without complications or lingering symptoms. However, it’s important to remember swimmer’s itch is caused by an allergy. Each time you get swimmer’s itch, it will likely be more severe than the last. Be sure to take precautions to prevent future exposure to the parasites.

• #16 Swimmer’s itch: Symptoms, causes, treatment, and more

  https://www.medicalnewstoday.com/articles/swimmers-itch

  Swimmers itch is the name for a skin rash that appears due to an allergic reaction to certain parasites. […] This can cause an allergic reaction, causing a rash to form. This rash is known as swimmers itch. […] The allergic reaction causes the person to develop a patchy, inflamed, pinpoint skin rash, known as swimmers itch. […] The American Osteopathic College of Dermatology notes that swimmers itch is not severe and often goes away without treatment after 1 week. In rare cases, it can affect a large portion of a persons body and become more severe. […] Common symptoms of swimmers itch include: a small rash on the skin, itchy skin, a tingling or burning sensation on the skin, small pimples, small blisters. […] According to the CDC, a person may experience tingling, burning, or itching of the skin within minutes or days of swimming in contaminated water.

• #17 Swimmer’s itch

  https://dermnetnz.org/topics/swimmers-itch

  Swimmers itch presents within hours of exposure after the film of water has dried on the skin. Initial symptoms are itch or a tingling sensation which settles quickly, leaving tiny red spots where skin penetration by the cercariae has occurred. Intense itch develops over a number of hours and the red spots can enlarge to form papules and, occasionally, hives. Blisters may develop over the next 24 to 48 hours. […] Swimmers itch usually resolves within 13 weeks without treatment. However, repeated exposures can result in severe reactions.

• #18 Swimmer’s Itch (Cercarial Dermatitis) – MN Dept. of Health

  https://www.health.state.mn.us/diseases/swimitch/index.html

  Symptoms of swimmer’s itch may include: […] Within minutes to days after swimming in contaminated water, you may experience tingling, burning, or itching of the skin. Small reddish pimples appear within 12 hours. Pimples may develop into small blisters. Scratching the areas may result in secondary bacterial infections. Itching may last up to a week or more, but will gradually go away. […] Because swimmer’s itch is caused by an allergic reaction to infection, the more often you swim or wade in contaminated water, the more likely you are to develop more serious symptoms. The greater the number of exposures to contaminated water, the more intense and immediate symptoms of swimmer’s itch will be.

• #19 Swimmer’s itch (cercarial dermatitis) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/swimmers-itch-cercarial-dermatitis/

  Patients may present with tingling, burning, or itching of the skin occurring hours to days after water exposure; itching may be mild initially with progression of worsening intensity. […] Patients may present in the first hours post-exposure with erythematous macules, which can progress to papules, with or without urticaria. Days to weeks post-exposure, the patient may exhibit purpuric lesions, vesicles, or pustules. […] The rash may appear diffusely (patient fully submerged) or may be localized to specific parts of body (patient wading legs in water). […] Systemic symptoms may include fever and local lymphadenopathy. […] Possible complications include secondary bacterial skin infections. Patients are at an increased risk when lesions are excoriated or manipulated.

• #20 Swimmer’s itch (cercarial dermatitis) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/swimmers-itch-cercarial-dermatitis/

  Patients may present with tingling, burning, or itching of the skin occurring hours to days after water exposure; itching may be mild initially with progression of worsening intensity. […] Patients may present in the first hours post-exposure with erythematous macules, which can progress to papules, with or without urticaria. Days to weeks post-exposure, the patient may exhibit purpuric lesions, vesicles, or pustules. […] The rash may appear diffusely (patient fully submerged) or may be localized to specific parts of body (patient wading legs in water). […] Systemic symptoms may include fever and local lymphadenopathy. […] Possible complications include secondary bacterial skin infections. Patients are at an increased risk when lesions are excoriated or manipulated.

• #21 Swimmer’s Itch (Cercarial Dermatitis): What Is It, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21783-swimmers-itch-cercarial-dermatitis

  Swimmers itch (cercarial dermatitis) is a skin rash that you can get if you’ve swum in fresh or salt water that is infested with a certain parasite. The main symptoms are a rash with reddish pimples and itching or burning. The rash usually gets better after a few days, but it can last for up to two weeks. […] Symptoms of swimmers itch (cercarial dermatitis) include: Tingling, burning or itchy skin. Small, reddish pimples or bumps that form a rash. Small blisters that form a rash. […] Swimmers itch usually goes away on its own within a week, but it could take longer, especially if you have swum in the infested water consecutive times or days. The rash from swimmers itch will eventually go away, and it could take up to two weeks.

• #22 Swimmer’s itch: Symptoms, causes, treatment, and more

  https://www.medicalnewstoday.com/articles/swimmers-itch

  Small pimples may appear within 12 hours. These pimples can then develop into small blisters. […] A person may have an itching sensation for a week or more, but it will often gradually go away without treatment. Swimmers itch tends to go away on its own after 13 weeks. […] An allergic reaction causes swimmers itch. This means that the more often a person exposes themselves to contaminated water, the more likely it is they will develop more serious symptoms.

• #23 Swimmer’s Itch: Solutions for Treatment and Prevention

  https://www.munsonhealthcare.org/blog/swimmers-itch-solutions-for-treatment-and-prevention

  Known officially as cercarial dermatitis, swimmers itch is a skin rash caused by an allergic reaction to tiny parasites found in bodies of water such as lakes and rivers. The rash can appear within minutes of leaving the water or within a few days and can last up to a month. […] If you have swimmers itch, you may experience a rash that burns or itches. The rash may also contain bumps that look like hives, pimples, or blisters. […] Swimmer’s itch does not typically last very long but the itching can be intense. […] Although it often resolves quickly, a swimmers itch rash could take several weeks to a month to go away. If your symptoms arent getting better, or you are experiencing a fever over 100.4, or other symptoms, contact your healthcare provider for additional treatment. […] If you experience swimmers itch multiple times, you may find that your allergic reaction becomes stronger.

• #24 Swimmer’s Itch – Causes, Symptoms and Treatment | Apollo Hospitals

  https://www.apollohospitals.com/diseases-and-conditions/swimmers-itch-causes-symptoms-and-treatment

  Swimmers itch is characterized by rashes caused by certain parasites that live in waterfowl and some mammals. […] The primary symptom of a swimmers itch is a set of rashes on your skin, especially right after a swim in an unpurified water body such as a lake, pond, or sea. These rashes look like blisters or pimples and are red. They usually appear on exposed skin, that is, parts not covered by clothing or protective material. These symptoms can worsen if the exposure is regular. […] Swimmers itch rashes usually occur within 12 hours of exposure to the parasites. The symptoms last for 2-5 days. Sometimes, the infection can last up to 2 weeks. Recurring rashes are usually more severe. It gets advised to stay away from water bodies until the rashes clear up.

• #25 Swimmer’s itch – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/swimmers-itch/symptoms-causes/syc-20355043

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Swimmer’s itch usually clears on its own within a few days. In the meantime, you can control itching with medicine.

• #26 Swimmer’s itch | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/swimmers-itch

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Talk to your health care provider if you have a rash after swimming that lasts more than a week. If you notice pus at the rash site, check with your health care provider. You might be referred to a doctor who specializes in skin conditions (dermatologist).

• #27 Swimmer’s Itch – Summer 2024 – Copake Lake Conservation Society

  https://copakelakecs.org/swimmers-itch-summer-2024/

  Swimmer’s itch is an itchy rash that can occur after you go swimming or wading outdoors. […] The itchy rash associated with swimmer’s itch looks like reddish pimples or blisters. It may appear within minutes or days after swimming or wading in infested water. […] Signs and symptoms of swimmer’s itch typically worsen with each exposure to the parasites. […] Swimmer’s itch is uncomfortable, but it usually clears up on its own in a few days. In the meantime, you can control itching with over-the counter or prescription medications.

• #28 Swimmer’s itch | HealthLink BC

  https://www.healthlinkbc.ca/healthlinkbc-files/swimmers-itch

  Symptoms can range from a mild irritation to a very severe, itchy red rash. Scratching can cause severe pain and swelling or cause your skin to become infected. The severity of your symptoms will depend on how many larvae get on to your skin, and how sensitive you are to them. Symptoms tend to be worse after repeat exposure. […] As you start to dry off and the larvae start to burrow into your skin, you may feel a tingling sensation. Small, pin sized red spots will appear, which grow into larger red rashes within several hours. As these red spots grow, the tingling feeling becomes a strong itch. […] A rash may appear within 12 hours after infection. The reaction may last from 2 to 5 days and symptoms can last as long as 2 weeks. […] Repeat infections are usually worse. People become more sensitive to the larvae and develop stronger responses each time.

• #29 Swimmer’s itch | HealthLink BC

  https://www.healthlinkbc.ca/healthlinkbc-files/swimmers-itch

  Symptoms can range from a mild irritation to a very severe, itchy red rash. Scratching can cause severe pain and swelling or cause your skin to become infected. The severity of your symptoms will depend on how many larvae get on to your skin, and how sensitive you are to them. Symptoms tend to be worse after repeat exposure. […] As you start to dry off and the larvae start to burrow into your skin, you may feel a tingling sensation. Small, pin sized red spots will appear, which grow into larger red rashes within several hours. As these red spots grow, the tingling feeling becomes a strong itch. […] A rash may appear within 12 hours after infection. The reaction may last from 2 to 5 days and symptoms can last as long as 2 weeks. […] Repeat infections are usually worse. People become more sensitive to the larvae and develop stronger responses each time.

• #30 Swimmer’s Itch: Solutions for Treatment and Prevention

  https://www.munsonhealthcare.org/blog/swimmers-itch-solutions-for-treatment-and-prevention

  Known officially as cercarial dermatitis, swimmers itch is a skin rash caused by an allergic reaction to tiny parasites found in bodies of water such as lakes and rivers. The rash can appear within minutes of leaving the water or within a few days and can last up to a month. […] If you have swimmers itch, you may experience a rash that burns or itches. The rash may also contain bumps that look like hives, pimples, or blisters. […] Swimmer’s itch does not typically last very long but the itching can be intense. […] Although it often resolves quickly, a swimmers itch rash could take several weeks to a month to go away. If your symptoms arent getting better, or you are experiencing a fever over 100.4, or other symptoms, contact your healthcare provider for additional treatment. […] If you experience swimmers itch multiple times, you may find that your allergic reaction becomes stronger.

• #31 Swimmer’s itch | Minnesota DNR

  https://www.dnr.state.mn.us/swimming/swimmersitch.html

  Swimmer’s itch is a temporary skin rash that is caused by an allergic reaction to microscopic parasites that are carried by waterfowl, semi-aquatic mammals, and snails. […] The itching and welts are not caused by the organism living under your skin, but by an allergic reaction. Not everyone is sensitive to swimmer’s itch. Some people show no symptoms of swimmer’s itch even though others swimming at the same time and place break out severely. […] Your sensitivity to swimmer’s itch will increase with each exposure.

• #32 Swimmer’s Itch: Incidence and Risk Factors

  https://pmc.ncbi.nlm.nih.gov/articles/PMC1448328/

  Swimmers itch (cercarial dermatitis) affects people engaged in open-water activities. […] Mild itching and macular eruptions occur 1 to several hours after a person leaves the water. Intense itching and papules are present 10 to 15 hours later, continuing for about a week. […] The swimmers itch incidence rate was 6.8 episodes per 100 water-exposure days (89 episodes; 95% confidence interval = 5.5, 8.2). Fifty-two people acquired swimmers itch (17.3% of exposed persons); 58% had 1 episode and 42% had 2 or more. […] This study found the following risk factors for onset of swimmers itch: amount of water exposure, especially shallow-water use; exposure in several lake zones; and taking preventive action. […] The onset of swimmers itch depends on how humans interact with the lake. Exposures to shallow water and areas with onshore winds are key risks for swimmers itch. The more days a person used the lake in July, the higher his or her chances of having any episode.

• #33 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #34 Swimmer’s Itch – Lake Mead National Recreation Area (U.S. National Park Service)

  https://www.nps.gov/lake/planyourvisit/swimmers-itch.htm

  Symptoms include reddening spots which appear within a few hours. Itching, swelling of the skin, and/or red welts may also develop 10 to 15 hours later. Itching may continue for several days, but all symptoms should disappear within a week. […] Only about a third of people who actually come in contact with this organisms actually develop Swimmers Itch. […] Since children swim closer to the shoreline, where the potential is greater to come in contact with the organisms, they are more likely to develop swimmers itch. […] Children also tend not to towel down after swimming, which if done would reduce the chance of developing the condition according to the Centers for disease control.

• #35 Swimmer’s Itch: Incidence and Risk Factors

  https://pmc.ncbi.nlm.nih.gov/articles/PMC1448328/

  Swimmers itch (cercarial dermatitis) affects people engaged in open-water activities. […] Mild itching and macular eruptions occur 1 to several hours after a person leaves the water. Intense itching and papules are present 10 to 15 hours later, continuing for about a week. […] The swimmers itch incidence rate was 6.8 episodes per 100 water-exposure days (89 episodes; 95% confidence interval = 5.5, 8.2). Fifty-two people acquired swimmers itch (17.3% of exposed persons); 58% had 1 episode and 42% had 2 or more. […] This study found the following risk factors for onset of swimmers itch: amount of water exposure, especially shallow-water use; exposure in several lake zones; and taking preventive action. […] The onset of swimmers itch depends on how humans interact with the lake. Exposures to shallow water and areas with onshore winds are key risks for swimmers itch. The more days a person used the lake in July, the higher his or her chances of having any episode.

• #36 Swimmer’s Itch – Lake Mead National Recreation Area (U.S. National Park Service)

  https://www.nps.gov/lake/planyourvisit/swimmers-itch.htm

  Symptoms include reddening spots which appear within a few hours. Itching, swelling of the skin, and/or red welts may also develop 10 to 15 hours later. Itching may continue for several days, but all symptoms should disappear within a week. […] Only about a third of people who actually come in contact with this organisms actually develop Swimmers Itch. […] Since children swim closer to the shoreline, where the potential is greater to come in contact with the organisms, they are more likely to develop swimmers itch. […] Children also tend not to towel down after swimming, which if done would reduce the chance of developing the condition according to the Centers for disease control.

• #37 Swimmer’s Itch | Kaiser Permanente

  https://healthy.kaiserpermanente.org/health-wellness/health-encyclopedia/he.swimmer’s-itch.abl0355

  Symptoms of swimmer’s itch include: A rash that usually goes away in about a week. An itching or burning feeling on your skin. Bumps on your skin that show up minutes or even days after you were in the water. The bumps may later turn into blisters. […] How severe the rash is may vary for people exposed to the same parasites.

• #38 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #39 Swimmer’s Itch (Cercarial Dermatitis) – MN Dept. of Health

  https://www.health.state.mn.us/diseases/swimitch/index.html

  Symptoms of swimmer’s itch may include: […] Within minutes to days after swimming in contaminated water, you may experience tingling, burning, or itching of the skin. Small reddish pimples appear within 12 hours. Pimples may develop into small blisters. Scratching the areas may result in secondary bacterial infections. Itching may last up to a week or more, but will gradually go away. […] Because swimmer’s itch is caused by an allergic reaction to infection, the more often you swim or wade in contaminated water, the more likely you are to develop more serious symptoms. The greater the number of exposures to contaminated water, the more intense and immediate symptoms of swimmer’s itch will be.

• #40 Swimmer’s itch (cercarial dermatitis) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/swimmers-itch-cercarial-dermatitis/

  Patients may present with tingling, burning, or itching of the skin occurring hours to days after water exposure; itching may be mild initially with progression of worsening intensity. […] Patients may present in the first hours post-exposure with erythematous macules, which can progress to papules, with or without urticaria. Days to weeks post-exposure, the patient may exhibit purpuric lesions, vesicles, or pustules. […] The rash may appear diffusely (patient fully submerged) or may be localized to specific parts of body (patient wading legs in water). […] Systemic symptoms may include fever and local lymphadenopathy. […] Possible complications include secondary bacterial skin infections. Patients are at an increased risk when lesions are excoriated or manipulated.

• #41 What is swimmer’s itch? Symptoms and how to treat it

  https://www.usatoday.com/story/life/health-wellness/2024/07/18/what-is-swimmers-itch/74102665007/

  Swimmers itch is a rash caused by an allergic reaction to the larvae of microscopic parasites that are found in both fresh and saltwater. […] Swimming in contaminated water for even a short period of time can cause swimmers itch, and after you come in contact with the larvae, when the skin dries off, those parasites burrow under people’s skin and cause an itchy rash. […] You can identify swimmers itch, also known as cercarial dermatitis, from the little red dots that appear on your skin after you’ve been exposed to the parasites. […] These dots typically appear 12 hours after exposure, and over the next day or two, some people may experience a more severe reaction with welts and blisters. […] One of the main risk factors of complication from this rash would be a secondary bacterial infection. […] Typically, the rash and itch significantly improves over the course of a week, although it’s possible for it to last as long as three weeks. […] If your swimmers itch has developed into blistering, open sores, and you’re experiencing fever, it could be signs of the secondary bacterial infection.

• #42 What is swimmer’s itch – and how can I avoid it?SearchMenuSearchSearchFacebookTwitterLinkedInYoutubeInstagram

  https://www.solitudelakemanagement.com/what-is-swimmers-itch-and-how-can-i-avoid-it/

  In the Midwest, these rashes usually develop in the first weeks of the summer when water initially warms up, and outbreaks themselves generally last no longer than four weeks. Depending on your location and its seasonality, this may differ. […] Note – not every rash developed after swimming in freshwater is swimmer’s itch, and while you usually don’t need to visit a doctor for medical care for swimmer’s itch, you should monitor symptoms for worsening or ongoing effects, such as: […] Increased pain, swelling, warmth, or redness. […] Red streaks extending from the affected area […] Pus […] Fever.

• #43 Swimmer’s itch | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/swimmers-itch

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Talk to your health care provider if you have a rash after swimming that lasts more than a week. If you notice pus at the rash site, check with your health care provider. You might be referred to a doctor who specializes in skin conditions (dermatologist).

• #44 What is swimmer’s itch? Symptoms and how to treat it

  https://www.usatoday.com/story/life/health-wellness/2024/07/18/what-is-swimmers-itch/74102665007/

  Swimmers itch is a rash caused by an allergic reaction to the larvae of microscopic parasites that are found in both fresh and saltwater. […] Swimming in contaminated water for even a short period of time can cause swimmers itch, and after you come in contact with the larvae, when the skin dries off, those parasites burrow under people’s skin and cause an itchy rash. […] You can identify swimmers itch, also known as cercarial dermatitis, from the little red dots that appear on your skin after you’ve been exposed to the parasites. […] These dots typically appear 12 hours after exposure, and over the next day or two, some people may experience a more severe reaction with welts and blisters. […] One of the main risk factors of complication from this rash would be a secondary bacterial infection. […] Typically, the rash and itch significantly improves over the course of a week, although it’s possible for it to last as long as three weeks. […] If your swimmers itch has developed into blistering, open sores, and you’re experiencing fever, it could be signs of the secondary bacterial infection.

• #45 Trematode Infection Clinical Presentation: History, Physical, Causes

  https://emedicine.medscape.com/article/230112-clinical

  Cercarial dermatitis, also known as swimmer’s itch, is an allergic reaction caused by the penetration of cercariae in persons who have been exposed to cercariae in fresh water. Cercarial dermatitis manifests as petechial hemorrhages with edema and pruritus, followed by maculopapular rash, which may become vesicular. […] Symptoms depend on the Schistosoma species that causes the infection, the duration and severity of the infection, and the immune response of the host to the egg antigens. […] Terminal hematuria, dysuria, and frequent urination are the main clinical symptoms of urinary schistosomiasis. […] Dysentery, diarrhea, weakness, and abdominal pain are the major symptoms of intestinal schistosomiasis. […] Headache, seizures (both generalized and focal), myeloradiculopathy with lower limb and back pain, paresthesia, and urinary bladder dysfunction are the noted symptoms of CNS schistosomiasis due to S japonicum infection. […] Neuroschistosomiasis is a severe manifestation of schistosomal infection. The neurological symptoms result from the inflammatory response of the host to the deposition of eggs in the brain and spinal cord.

• #46 Swimmer’s Itch | Kaiser Permanente

  https://healthy.kaiserpermanente.org/health-wellness/health-encyclopedia/he.swimmer’s-itch.abl0355

  Symptoms of swimmer’s itch include: A rash that usually goes away in about a week. An itching or burning feeling on your skin. Bumps on your skin that show up minutes or even days after you were in the water. The bumps may later turn into blisters. […] How severe the rash is may vary for people exposed to the same parasites.

• #47 Swimmer’s itch | HealthLink BC

  https://www.healthlinkbc.ca/healthlinkbc-files/swimmers-itch

  Symptoms can range from a mild irritation to a very severe, itchy red rash. Scratching can cause severe pain and swelling or cause your skin to become infected. The severity of your symptoms will depend on how many larvae get on to your skin, and how sensitive you are to them. Symptoms tend to be worse after repeat exposure. […] As you start to dry off and the larvae start to burrow into your skin, you may feel a tingling sensation. Small, pin sized red spots will appear, which grow into larger red rashes within several hours. As these red spots grow, the tingling feeling becomes a strong itch. […] A rash may appear within 12 hours after infection. The reaction may last from 2 to 5 days and symptoms can last as long as 2 weeks. […] Repeat infections are usually worse. People become more sensitive to the larvae and develop stronger responses each time.

• #48 Swimmer’s itch | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/swimmers-itch

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Talk to your health care provider if you have a rash after swimming that lasts more than a week. If you notice pus at the rash site, check with your health care provider. You might be referred to a doctor who specializes in skin conditions (dermatologist).

• #49 How to Recognize Chlorine Rash & Swimmers Itch | Lockey, Fox, Ledford & Glaum MDs PA

  https://www.allergytampa.com/2023/07/25/how-to-recognize-chlorine-rash-swimmers-itch/

  Swimmer’s itch, or cercarial dermatitis, is a skin rash caused by an allergic reaction to certain microscopic parasites that infest freshwater lakes and ponds. Here are its key symptoms: […] The skin may become incredibly itchy within minutes to hours after swimming in infested water. […] Initially, small red pimples may appear on the skin. […] Within a day or two, these pimples may turn into blisters. […] Swimmer’s itch is generally found on exposed skin that has come into direct contact with the water, and it rarely affects the areas covered by swimsuits.

• #50 Swimmer’s itch (cercarial dermatitis) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/swimmers-itch-cercarial-dermatitis/

  Patients may present with tingling, burning, or itching of the skin occurring hours to days after water exposure; itching may be mild initially with progression of worsening intensity. […] Patients may present in the first hours post-exposure with erythematous macules, which can progress to papules, with or without urticaria. Days to weeks post-exposure, the patient may exhibit purpuric lesions, vesicles, or pustules. […] The rash may appear diffusely (patient fully submerged) or may be localized to specific parts of body (patient wading legs in water). […] Systemic symptoms may include fever and local lymphadenopathy. […] Possible complications include secondary bacterial skin infections. Patients are at an increased risk when lesions are excoriated or manipulated.

• #51 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #52 Swimmer’s Itch – Lake Mead National Recreation Area (U.S. National Park Service)

  https://www.nps.gov/lake/planyourvisit/swimmers-itch.htm

  Symptoms include reddening spots which appear within a few hours. Itching, swelling of the skin, and/or red welts may also develop 10 to 15 hours later. Itching may continue for several days, but all symptoms should disappear within a week. […] Only about a third of people who actually come in contact with this organisms actually develop Swimmers Itch. […] Since children swim closer to the shoreline, where the potential is greater to come in contact with the organisms, they are more likely to develop swimmers itch. […] Children also tend not to towel down after swimming, which if done would reduce the chance of developing the condition according to the Centers for disease control.

• #53 What is swimmer’s itch – and how can I avoid it?SearchMenuSearchSearchFacebookTwitterLinkedInYoutubeInstagram

  https://www.solitudelakemanagement.com/what-is-swimmers-itch-and-how-can-i-avoid-it/

  In the Midwest, these rashes usually develop in the first weeks of the summer when water initially warms up, and outbreaks themselves generally last no longer than four weeks. Depending on your location and its seasonality, this may differ. […] Note – not every rash developed after swimming in freshwater is swimmer’s itch, and while you usually don’t need to visit a doctor for medical care for swimmer’s itch, you should monitor symptoms for worsening or ongoing effects, such as: […] Increased pain, swelling, warmth, or redness. […] Red streaks extending from the affected area […] Pus […] Fever.

• #54 What is swimmer’s itch – and how can I avoid it?SearchMenuSearchSearchFacebookTwitterLinkedInYoutubeInstagram

  https://www.solitudelakemanagement.com/what-is-swimmers-itch-and-how-can-i-avoid-it/

  In the Midwest, these rashes usually develop in the first weeks of the summer when water initially warms up, and outbreaks themselves generally last no longer than four weeks. Depending on your location and its seasonality, this may differ. […] Note – not every rash developed after swimming in freshwater is swimmer’s itch, and while you usually don’t need to visit a doctor for medical care for swimmer’s itch, you should monitor symptoms for worsening or ongoing effects, such as: […] Increased pain, swelling, warmth, or redness. […] Red streaks extending from the affected area […] Pus […] Fever.

• #55 Swimmer’s Itch: What It Is, Symptoms and Treatment

  https://sesamecare.com/blog/swimmers-itch-symptoms-treatment?srsltid=AfmBOooPdZFg7MrLHAZa9W3pr65OMgxlEMwryIaHzeMgwbgZu1a7LN99

  Swimmer’s itch, also known as cercarial dermatitis, is a rash caused by an allergic reaction to tiny parasites that are often found in bodies of fresh and saltwater. When these parasites dig or burrow into human skin, they can cause an inflammatory reaction in the skin. This inflammatory reaction typically first manifests as a tingling, itching or burning sensation on the skin. Within 2 to 12 hours, a skin rash tends to emerge. […] Typically, the skin rash caused by swimmers itch looks like a cluster of red pimples or inflamed bumps. In some cases, those itchy bumps can turn into small blisters, which can cause additional discomfort. […] Signs and symptoms of swimmers itch can include: An itching, burning or tingling sensation on your skin. An uncomfortable skin rash that looks like a cluster or small red bumps or pimples. Small blisters.

• #56 Swimmer’s Itch: What It Is, Symptoms and Treatment

  https://sesamecare.com/blog/swimmers-itch-symptoms-treatment?srsltid=AfmBOooPdZFg7MrLHAZa9W3pr65OMgxlEMwryIaHzeMgwbgZu1a7LN99

  You may have swimmers itch if you recently swam in an open body of freshwater or the ocean and are developing (or have developed) an itchy rash. Typically, a swimmers itch rash will start to appear within twelve hours of swimming in contaminated water. […] Swimmers itch typically lasts between five to ten days. However, if you are re-exposed to a contaminated body of water, your swimmers itch rash may last longer. Your symptoms may worsen if you continue to swim, play or wade in infested waters after you’ve already developed a swimmers itch rash.

• #57 Swimmer’s Itch | Disease Outbreak Control Division

  https://health.hawaii.gov/docd/disease_listing/swimmers-itch/

  Swimmers itch is a rash caused by an allergic reaction to certain microscopic parasites that infect birds and animals. The first symptoms can begin within a few minutes to days of exposure to the contaminated water. First you may experience tingling, burning, or itching of the skin. Small reddish pimples appear within 12 hours. Pimples may develop into small blisters. Itching may last up to a week or more, but will go away gradually. […] Because swimmers itch is caused by an allergic reaction, the more often you are exposed to contaminated water, the more intense and immediate symptoms of swimmers itch will be. The allergic reaction to penetrating cercariae is self-limiting; signs and symptoms usually will resolve within 12 weeks.

• #58 Swimmer’s Itch: What It Is, Symptoms and Treatment

  https://sesamecare.com/blog/swimmers-itch-symptoms-treatment?srsltid=AfmBOooPdZFg7MrLHAZa9W3pr65OMgxlEMwryIaHzeMgwbgZu1a7LN99

  You may have swimmers itch if you recently swam in an open body of freshwater or the ocean and are developing (or have developed) an itchy rash. Typically, a swimmers itch rash will start to appear within twelve hours of swimming in contaminated water. […] Swimmers itch typically lasts between five to ten days. However, if you are re-exposed to a contaminated body of water, your swimmers itch rash may last longer. Your symptoms may worsen if you continue to swim, play or wade in infested waters after you’ve already developed a swimmers itch rash.

• #59 Swimmer’s Itch: Solutions for Treatment and Prevention

  https://www.munsonhealthcare.org/blog/swimmers-itch-solutions-for-treatment-and-prevention

  Known officially as cercarial dermatitis, swimmers itch is a skin rash caused by an allergic reaction to tiny parasites found in bodies of water such as lakes and rivers. The rash can appear within minutes of leaving the water or within a few days and can last up to a month. […] If you have swimmers itch, you may experience a rash that burns or itches. The rash may also contain bumps that look like hives, pimples, or blisters. […] Swimmer’s itch does not typically last very long but the itching can be intense. […] Although it often resolves quickly, a swimmers itch rash could take several weeks to a month to go away. If your symptoms arent getting better, or you are experiencing a fever over 100.4, or other symptoms, contact your healthcare provider for additional treatment. […] If you experience swimmers itch multiple times, you may find that your allergic reaction becomes stronger.

• #60 Swimmer’s Itch – Causes, Symptoms and Treatment | Apollo Hospitals

  https://www.apollohospitals.com/diseases-and-conditions/swimmers-itch-causes-symptoms-and-treatment

  Swimmers itch is characterized by rashes caused by certain parasites that live in waterfowl and some mammals. […] The primary symptom of a swimmers itch is a set of rashes on your skin, especially right after a swim in an unpurified water body such as a lake, pond, or sea. These rashes look like blisters or pimples and are red. They usually appear on exposed skin, that is, parts not covered by clothing or protective material. These symptoms can worsen if the exposure is regular. […] Swimmers itch rashes usually occur within 12 hours of exposure to the parasites. The symptoms last for 2-5 days. Sometimes, the infection can last up to 2 weeks. Recurring rashes are usually more severe. It gets advised to stay away from water bodies until the rashes clear up.

• #61 Swimmer’s Itch (Cercarial Dermatitis): What Is It, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21783-swimmers-itch-cercarial-dermatitis

  Swimmers itch (cercarial dermatitis) is a skin rash that you can get if you’ve swum in fresh or salt water that is infested with a certain parasite. The main symptoms are a rash with reddish pimples and itching or burning. The rash usually gets better after a few days, but it can last for up to two weeks. […] Symptoms of swimmers itch (cercarial dermatitis) include: Tingling, burning or itchy skin. Small, reddish pimples or bumps that form a rash. Small blisters that form a rash. […] Swimmers itch usually goes away on its own within a week, but it could take longer, especially if you have swum in the infested water consecutive times or days. The rash from swimmers itch will eventually go away, and it could take up to two weeks.

• #62 Swimmer’s itch: Symptoms, causes, treatment, and more

  https://www.medicalnewstoday.com/articles/swimmers-itch

  Small pimples may appear within 12 hours. These pimples can then develop into small blisters. […] A person may have an itching sensation for a week or more, but it will often gradually go away without treatment. Swimmers itch tends to go away on its own after 13 weeks. […] An allergic reaction causes swimmers itch. This means that the more often a person exposes themselves to contaminated water, the more likely it is they will develop more serious symptoms.

• #63 Swimmer’s Itch: Solutions for Treatment and Prevention

  https://www.munsonhealthcare.org/blog/swimmers-itch-solutions-for-treatment-and-prevention

  Known officially as cercarial dermatitis, swimmers itch is a skin rash caused by an allergic reaction to tiny parasites found in bodies of water such as lakes and rivers. The rash can appear within minutes of leaving the water or within a few days and can last up to a month. […] If you have swimmers itch, you may experience a rash that burns or itches. The rash may also contain bumps that look like hives, pimples, or blisters. […] Swimmer’s itch does not typically last very long but the itching can be intense. […] Although it often resolves quickly, a swimmers itch rash could take several weeks to a month to go away. If your symptoms arent getting better, or you are experiencing a fever over 100.4, or other symptoms, contact your healthcare provider for additional treatment. […] If you experience swimmers itch multiple times, you may find that your allergic reaction becomes stronger.

• #64 What Is Swimmer’s Itch?

  https://www.verywellhealth.com/swimmers-itch-7151852

  The typical symptoms of swimmers itch include: Tingling, itching, or burning skin. Small discolored pimples. Small blisters. […] Symptoms of swimmer’s itch can start anywhere from a few minutes to a few days after you swim, but it often begins within two hours of swimming. The tingling, itching, or burning sensations start first, followed by pimples in about 12 hours. The pimples may develop into small blisters. You may be itchy for a week or longer. […] Swimmers itch is usually easy to identify from its symptoms and how it progresses (itching, pimples, and blisters). The rash only affects areas of skin that are directly in contact with the water and will not spread to other areas, even if you scratch it. Its most common in areas not covered by a swimsuit or wetsuit. […] Your first case of swimmer’s itch may last up to two weeks. If you avoid infection, it should clear up without complications or lingering symptoms. However, it’s important to remember swimmer’s itch is caused by an allergy. Each time you get swimmer’s itch, it will likely be more severe than the last. Be sure to take precautions to prevent future exposure to the parasites.

• #65 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #66 Swimmer’s itch | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/swimmers-itch

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Talk to your health care provider if you have a rash after swimming that lasts more than a week. If you notice pus at the rash site, check with your health care provider. You might be referred to a doctor who specializes in skin conditions (dermatologist).

• #67 What is swimmer’s itch? Symptoms and how to treat it

  https://www.usatoday.com/story/life/health-wellness/2024/07/18/what-is-swimmers-itch/74102665007/

  Swimmers itch is a rash caused by an allergic reaction to the larvae of microscopic parasites that are found in both fresh and saltwater. […] Swimming in contaminated water for even a short period of time can cause swimmers itch, and after you come in contact with the larvae, when the skin dries off, those parasites burrow under people’s skin and cause an itchy rash. […] You can identify swimmers itch, also known as cercarial dermatitis, from the little red dots that appear on your skin after you’ve been exposed to the parasites. […] These dots typically appear 12 hours after exposure, and over the next day or two, some people may experience a more severe reaction with welts and blisters. […] One of the main risk factors of complication from this rash would be a secondary bacterial infection. […] Typically, the rash and itch significantly improves over the course of a week, although it’s possible for it to last as long as three weeks. […] If your swimmers itch has developed into blistering, open sores, and you’re experiencing fever, it could be signs of the secondary bacterial infection.

• #68 Swimmer’s Itch (cercarial dermatitis, schistosome dermatitis)

  https://www.health.ny.gov/publications/6645/

  Swimmers itch (cercarial dermatitis) is caused by a parasite that lives in waterfowl and snails. People can get symptoms when the parasite penetrates the skin. Swimmers itch symptoms include an itchy rash, raised red bumps and tenderness of the skin. Symptoms can appear minutes to days after exposure and can last for several days. Most cases do not require medical treatment. […] Anyone can get swimmers itch. Children are more likely to get swimmers itch than adults because kids spend more time in shallow waters where the parasite may be present, and are less likely to towel dry. Swimmers itch is not contagious; it cannot be passed from person to person. […] Most cases of swimmers itch get better on their own. Over-the-counter and home remedies such as anti-itch and corticosteroid creams, cool compresses, Epsom salts, baking soda and colloidal oatmeal baths can help to soothe symptoms. […] Try not to scratch. Scratching affected areas can cause a bacterial infection. If itching is severe, contact a health care provider, who might suggest prescription strength lotions or creams.

• #69 What is swimmer’s itch – and how can I avoid it?SearchMenuSearchSearchFacebookTwitterLinkedInYoutubeInstagram

  https://www.solitudelakemanagement.com/what-is-swimmers-itch-and-how-can-i-avoid-it/

  In the Midwest, these rashes usually develop in the first weeks of the summer when water initially warms up, and outbreaks themselves generally last no longer than four weeks. Depending on your location and its seasonality, this may differ. […] Note – not every rash developed after swimming in freshwater is swimmer’s itch, and while you usually don’t need to visit a doctor for medical care for swimmer’s itch, you should monitor symptoms for worsening or ongoing effects, such as: […] Increased pain, swelling, warmth, or redness. […] Red streaks extending from the affected area […] Pus […] Fever.

• #70 Swimmer’s itch | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/swimmers-itch

  Swimmer’s itch symptoms include an itchy rash that looks like pimples or blisters. Symptoms may begin within minutes or as long as two days after swimming or wading in contaminated water. […] Usually the rash affects skin that’s not covered by swimsuits, wetsuits or waders. Your sensitivity to swimmer’s itch can increase each time you’re exposed to the parasites that cause it. […] Talk to your health care provider if you have a rash after swimming that lasts more than a week. If you notice pus at the rash site, check with your health care provider. You might be referred to a doctor who specializes in skin conditions (dermatologist).

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