Sand Hollow State Park attracts many visitors to its warm waters and scenic landscapes. A common concern for visitors is the presence of swimmer’s itch. This article addresses whether swimmer’s itch is found at Sand Hollow and what visitors should understand about this skin irritation.
What is Swimmer’s Itch?
Swimmer’s itch, also known as cercarial dermatitis, is a temporary skin rash resulting from an allergic reaction to microscopic larvae. These larvae are released into water by infected snails, their intermediate hosts. The parasites seek out waterfowl or semi-aquatic mammals to complete their life cycle, but can mistakenly burrow into human skin.
Humans are accidental hosts; the larvae cannot develop further within human skin and die shortly after burrowing. This burrowing triggers an immune response, causing an itchy rash with reddish bumps or pimples. While uncomfortable, swimmer’s itch is not contagious and generally resolves within a few days to a week.
Swimmer’s Itch at Sand Hollow
Swimmer’s itch is reported at Sand Hollow State Park, with park officials often receiving reports. The reservoir’s warm water and the presence of specific snail species and waterfowl create an environment where the parasites can thrive. Conditions like warmer temperatures and lower water levels can contribute to an increased likelihood of outbreaks.
Sand Hollow’s water conditions, unlike some other Southern Utah bodies of water, are particularly conducive for the parasite. Park officials issue warnings, and visitors are advised to check for current advisories at entrance gates or boat ramps. The presence of swimmer’s itch can fluctuate seasonally, so awareness of park updates is beneficial.
How to Avoid Swimmer’s Itch
Minimizing the risk of swimmer’s itch involves several practical steps, particularly after leaving the water. Immediately and vigorously towel drying your skin upon exiting the water can help remove the larvae before they burrow. If showering facilities are available, rinsing off promptly with clean water and soap is also recommended.
Avoiding shallow areas with dense vegetation or locations where waterfowl congregate can further reduce exposure, as these are areas where snails and parasites are more likely to be found. Refraining from feeding waterfowl near swimming areas is also advisable, as this can attract birds that may carry the parasites, increasing their presence in the water. Swimming in deeper water, away from the shoreline, may also lower the risk.
What to Do If You Get Swimmer’s Itch
If swimmer’s itch develops, symptoms include an itchy rash with small, reddish pimples that may turn into blisters. The itching can begin within minutes to days after exposure and may intensify over 48 to 72 hours, potentially lasting up to a week or more. It is important to avoid scratching the affected areas to prevent secondary bacterial infections.
Various over-the-counter remedies can help alleviate discomfort. Applying corticosteroid creams, anti-itch lotions like calamine, or cool compresses can provide relief. Soaking in baths containing Epsom salts, baking soda, or colloidal oatmeal may also soothe the skin. If symptoms are severe, widespread, persist beyond a week or two, or show signs of infection such as pus or red streaks, seeking medical attention is recommended.