Propylene Glycol Dermatitis

Abstract

Three patients with allergic contact dermatitis from propylene glycol and three patients with irritant dermatitis from propylene glycol were reported. One out of latter three cases was cumulative irritant dermatitis. It was often difficult to decide whether a positive reaction to a 10% aqueous solution of propylene glycol was due to specific sensitization or to irritation by the reading of D3. It was considered that the reading of D6 was able to distinguish between them. Patch testing gave a positive reaction even after 6 days in the allergic contact dermatitis but a only slight erythema or negative in the irritant dermatitis. © 1984, Meeting of Osaka Dermatological Association. All rights reserved.