Allergic Skin Disorders

Phytophotodermatitis, a form of plant dermatitis, is a skin reaction that occurs after natural photosensitizing chemicals (furanocoumarins) present within plant sap and fruits, become smeared onto the skin, and there is subsequent exposure to sunlight. The areas affected become acutely red, and often blister. Skin lesions may be linear or streaked in morphology. After the acute inflammatory reaction subsides, there is typically postinflammatory hyperpigmentation which may last for years.