Persistent light reaction / 대한피부과학회지

ABSTRACT

Persistent light reaction is a condition of chronic photodermatitis in which photosensitive reaction persists even after the rernoval of all photosensilizers. A 56-year-old man had experienced a recurrent dermatitis involving primarily the face, neek, forearms and hands for 9 years, this condition was aggravated by sunexposure. Photopatch testing disclosed a strongly positive reaction to chloropromazine, promethazine, acid trichlorocarbanilide, Phototesting also revealed lowered MED with UVA and UVB thar norrmal mean value.