Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. It is distinct from sunburn.
光過敏是指因陽光照射而引發或加重的各種症狀、疾病與病症(光性皮膚病)。它可分為五類:primary photodermatosis(原發性光皮膚病)、exogenous photodermatosis(外源性光皮膚病)、photo‑exacerbated dermatoses(光惡化性皮膚病)、metabolic photodermatosis(代謝性光皮膚病)以及 genetic photodermatosis(遺傳性光皮膚病)。 Photosensitivity refers to various symptoms, diseases, and conditions (photodermatoses) caused or exacerbated by exposure to sunlight. It is classified into five categories: primary photodermatosis, exogenous photodermatosis, photo-exacerbated dermatoses, metabolic photodermatosis, and genetic photodermatosis.
光敏性皮炎 (photosensitive dermatitis) 可能導致腫脹、呼吸困難、灼熱感、紅色發癢皮疹(有時呈小水泡狀)以及皮膚脫皮。亦可能出現斑點,搔癢感可能持續較長時間。