User:Mr. Ibrahem/Seabather's eruption

Seabather's eruption is a rash that occurs due stings by certain sea anemones and thimble jellyfish. Initially there is typically a tingling sensation, followed by the area becoming itchy. The rash generally occurs under a persons swimming suit. Symptoms may last for a few weeks. Complications may include secondary bacterial skin infection.

Most cases occur after swimming in a ocean. The underlying mechanism is believed to involve an initial toxin followed by a allergic reaction. It is not spread between people. Diagnosis is generally based on symptoms. Other conditions that may appear similar include swimmer's itch.

Treatment may involve the use of hydrocortisone or calamine lotion. NSAIDs and antihistamines may also help. Prevention is by rinsing off with uncontaminated seawater after leaving the water. Repeated exposures may result in worse symptoms.

Most cases occur in the tropics and subtropics; though cases have been reported as far North as New York. Children may be more severely affected. The condition was initially described in 1949. While the term "sea lice" has been used, it is not caused by the sea louse, a parasite that affects only fish.