The Iowa Department of Natural Resources (DNR) has reported that cases of swimmer’s itch have popped up in Iowa’s northwest and north central lakes. The condition, which is common in clear water lakes around the world, is the result of flatworm eggs that are introduced through the water from bird droppings. The eggs hatch and infest snail populations which then produce the free swimming form of the flatworm larvae. Without the host bird, the parasite attempts to burrow under the skin of swimmers, but quickly dies. This creates an allergic reaction and an itchy rash. Prevention of swimmers itch includes avoiding marshy areas where snails are commonly found, reducing the amount of time spent in the water and avoiding beaches that have been pounded by waves over the past few days. Always rinse or dry off right after getting out of the water and use a waterproof sunscreen that helps protect the skin from the rash. The welts and itching can last for several days to about a week, but usually do not require a visit to a doctor. Treat any infected areas with an antihistamine and calamine lotion. More information can be found through links included below.
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www.cdc.gov/parasites/swimmersitch/
www.mayoclinic.com/health/swimmers-itch/DS00902
