Spa Treatment Cause of Contact Dermatitis

A chemical called potassium monopersulfate is often used in spa and pool "shock treatments." This chemical has not been studied as a cause of contact dermatitis, but researchers recently reported a case of contact dermatitis in a person who used potassium monopersulfate in his spa shock treatment. The dermatitis cleared up after the person switched to a shock treatment based on hydrogen peroxide.