Abstract: Drug-induced photosensitivity refers to photosensitive drugs (local or systemic administration) and ultraviolet rays (UVA320-400 nm, UVB290-320 nm) and visible light (400-700 nm). In general, it can be divided into photo-allergic reaction and photo-toxic reaction. This paper mainly reviews the classification, pathogenesis, diagnosis, differential diagnosis, photosensitive drugs and treatment of drug-induced photosensitivity, in order to provide new ideas to diagnose and treat drug-induced photosensitivity.

Key words: drug-induced photosensitivity, pathogenesis, diagnosis, photosensitive drugs