Swimmer’s itch is the name for a skin rash that appears due to an allergic reaction to certain parasites. Doctors refer to this condition as cercarial dermatitis. The parasites that cause swimmer’s ...

Swimmer’s itch, or cercarial dermatitis, is a skin condition caused by “microscopic parasites,” according to the Centers for ...

It starts with a slight tingle. Then a prickle. Soon you’re frantically scratching, but when you look down at your skin, there’s… nothing there. No redness, no bumps, no rash—just normal-looking skin ...