![]() Most cases of swimmer’s itch will resolve within 1 to 2 weeks with simple home treatment. Avoid excessive scratching of the itchy areas because this can lead to a skin infection. More severe cases can require treatment with prescription medications. ![]() Topical steroids, such as hydrocortisone cream, and antihistamines, such as diphenhydramine ( Benadryl®), can be used to treat itching. ![]() Baking soda baths and pastes can be helpful as well. Cool compresses and soaking in Epsom salts or oatmeal baths can soothe the rash. Drying your skin with a towel instead of air drying might help remove some of the cercariae from the skin. If you suspect swimmer’s itch, you should take a shower if you have not already done so after getting out of the water. Most cases of swimmer’s itch can be easily treated at home. Severe symptoms, including fevers, diarrhea, and nausea, occur rarely. Because it is an allergic reaction and not a true infection, swimmer’s itch is not contagious. While the swimmers’ itch rash is uncomfortable, it is generally self-limited and not dangerous. This helps to differentiate swimmer’s itch from saltwater seabathers’ eruption, which primarily affects the skin under swimsuits. The rash typically involves areas of the body that were exposed to contaminated water, with areas of skin covered by bathing suits usually being spared. The rash can appear similar to pimples, chickenpox, or blisters and is often red, itchy, or burning in nature. Within a few minutes to a couple of days after swimming in contaminated water, a rash can develop. They die, and their remains in human skin can cause the characteristic itchy rash (cercarial dermatitis). The cercariae can painlessly burrow into human skin, but they are not able to survive there. The cercariae can be encountered by swimmers, particularly in shallow and marshy areas, although they are too small to see. The snails release a different larval form of the parasite called cercariae. ![]() If the parasite eggs are released into or near water, they can hatch into larvae (immature forms), which can then infect fresh-water snails. The adult parasites produce eggs, which are passed in the feces of these animals. Several species of birds (e.g., geese, ducks, gulls) and mammals (e.g., beavers, raccoons) that live near water can be infected with parasites. Swimmer’s itch is a water-borne parasitic disease, and the normal life cycle of the disease-causing parasite involves different animals. ![]()
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