How to Avoid Swimmer's Itch

If you swim, you probably should not blame your itchy skin on the sun or the mosquitoes. Your discomfort may be caused by swimmer's itch, or cercarial dermatitis. Caused by trematode parasites (in fresh water) or trematode parasites and nematocysts (in saltwater), animals spread the pests, which cause itching, irritation and discomfort. Talk to your doctor to properly diagnose and treat your problem and prevent swimmer's itch by being careful about where you swim.

Instructions

Freshwater

• 1

  Choose your swimming location carefully. Marshy areas with lots of algae and vegetation are more likely to contain snails or other animals that carry parasites. Look for signs of birds swimming in or around the lake or pond. If you see feathers in the water, for example, do not swim there.

• 2

  Swim in deep water. Shallow water close to the shore is more likely to be infested with parasites.

• 3

  Shower immediately after you swim. If you are unable to shower, rinse your body with clean water, then dry your skin thoroughly. Machine wash your swimsuit immediately, if possible.

• 4

  Look for signs of jellyfish before swimming in the ocean. Nematocysts, or jellyfish larvae -- not so-called "sea lice"-- cause swimmer's itch, especially in areas with large concentrations of the creatures. Look for jellyfish on the shoreline. (See Reference 3) Some beaches post signs to make swimmers aware of jellyfish.

• 5

  Add chlorine to your swimming pool. If birds, algae or snails are in your swimming pool, it may harbor parasites that cause swimmer's itch. Adding chlorine and keeping the pool clean will reduce parasites in the water. (See Reference 2)