June 24, 2025– Otter Tail County, Minn. — With summer in full swing and families heading to the lakes, Otter Tail County Public Health is reminding swimmers to be aware of swimmer’s itch, a common skin irritation caused by microscopic parasites in freshwater.

Swimmer’s itch is an allergic reaction triggered when parasites released by infected snails burrow into human skin. Although uncomfortable, the condition is not contagious and typically resolves on its own.

Symptoms may include:

• Tingling, burning, or itching of the skin
• Small red pimples appearing within 12 hours
• Blisters or rash
• Secondary infections from excessive scratching

To relieve symptoms, consider:

• Applying corticosteroid creams or anti-itch lotion
• Using cool compresses
• Taking Epsom salt or baking soda baths

To reduce the risk of swimmer’s itch:

• Avoid swimming in areas where swimmer’s itch is known to occur
• Stay away from marshy or weedy shorelines
• Towel off or shower immediately after swimming
• Swim from a dock, raft or boat rather than along the shoreline

While Otter Tail County does not monitor local lakes for swimmer’s itch, residents are encouraged to take preventive steps to reduce the risk.

For more information, visit the Minnesota Department of Health at health.state.mn.us/diseases/swimitch or the Minnesota DNR at dnr.state.mn.us/swimming/swimmersitch.html