What you need to know about swimmer itching?
Swimmer's itch is an itchy rash that can occur after you go swimming or wading outdoors. Also known as cercarial dermatitis, swimmer's itch is most common in freshwater lakes and ponds, but it occasionally occurs in salt water.
Swimmer's itch is a rash usually caused by an allergic reaction to parasites that burrow
into your skin while you're swimming or wading in warm water.
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.
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.
Swimmer's itch usually affects only exposed skin — skin not covered by swimsuits, wet suits or waders.
Swimmer itching is not a dangerous condition and is very rarely a complication. As the rash causes itching there is a high risk of itching and it is advisable not to irritate the bump with itching, do not invade the infection.
Source:
https://www.mayoclinic.org/diseases-conditions/swimmers-itch/symptoms-
causes/syc-20355043
