title: Spa contact dermatitis.
abstract: Potassium monopersulfate (MPS) is widely used in spa and pool "shock" treatments, yet contact dermatitis associated with MPS has been rarely reported. A patient presented with a generalized scattered dermatitis from the neck down that worsened after spa use. Patch testing elicited a ++ reaction to ammonium persulfate. Contact with ammonium persulfate was ruled out; however, MPS, which can cross-react with ammonium persulfate, was found to be the active ingredient in the patient's spa shock treatments. The dermatitis cleared after the patient switched to a hydrogen peroxide-based shock treatment.
authors.affiliation: Department of Dermatology, Penn State/Milton S. Hershey Medical Center, Hershey, PA, USA.
authors.forename: Jessica A
authors.initials: JA
authors.lastname: Yankura
authors.forename: James G
authors.initials: JG
authors.lastname: Marks
authors.forename: Bryan E
authors.initials: BE
authors.lastname: Anderson
authors.forename: David R
authors.initials: DR
authors.lastname: Adams
mesh_terms: D000645:Ammonium Sulfate / Q000276:immunology; D001494:Baths / Q000009:adverse effects*; D003429:Cross Reactions; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis / Q000209:etiology*; D004202:Disinfectants / Q000009:adverse effects* / Q000276:immunology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010328:Patch Tests; D017680:Potassium Compounds / Q000009:adverse effects* / Q000276:immunology; D013431:Sulfates / Q000009:adverse effects* / Q000276:immunology
chemical_list: D004202:Disinfectants; D017680:Potassium Compounds; D013431:Sulfates; C031276:ammonium peroxydisulfate; C009007:potassium persulfate; D000645:Ammonium Sulfate