Swimmers Itch

Swimmers Itch: Symptoms, Causes, Treatment, and Prevention

What is Swimmers Itch?

Swimmers itch, also known as cercarial dermatitis, is a common skin irritation caused by a reaction to parasitic worms that live in freshwater snails.

When these tiny worms release their larvae into the water, they can penetrate human skin, causing an allergic reaction.

What are the Symptoms of Swimmers Itch?

The most common symptom of swimmers itch is an itchy rash that resembles pimples or blisters.

Other symptoms may include:

• Redness
• Swelling
• Itching
• Blisters
• Fever
• Chills

What Causes Swimmers Itch?

Swimmers itch is caused by a type of parasitic worm called a trematode.

These worms live in freshwater snails and release their larvae into the water when they are ready to reproduce.

The larvae then penetrate human skin, causing the allergic reaction that leads to swimmers itch.

How is Swimmers Itch Treated?

There is no cure for swimmers itch, but the symptoms can be treated.

Treatment options include:

• Calamine lotion
• Hydrocortisone cream
• Antihistamines

In severe cases, oral steroids may be prescribed.

How can Swimmers Itch be Prevented?

There are several things you can do to prevent swimmers itch, including:

• Avoid swimming in freshwater lakes or ponds that are known to be infested with parasites.
• If you do swim in freshwater, shower immediately after getting out of the water.
• Towel dry your skin thoroughly.
• Avoid scratching the rash, as this can make it worse.