Chapter 199. Photosensitivity

Polymorphous light eruption noted over dorsum of left forearm. Note absence of the lesion where the patient had been wearing her watch. (From Wenner C, Lee A. A bright red pruritic rash on the forearms. J Fam Pract. 2007;56(8):627-629. Reproduced with permission from Frontline Medical Communications.)

Polymorphous light eruption on the arm of a young man. Note the sparing of the skin under his watchband. (Courtesy of Richard P. Usatine, MD.)

Severe phototoxic drug reaction secondary to hydrochlorothiazide use. (Courtesy of Richard P. Usatine, MD.)

Phototoxic drug reaction secondary to ibuprofen. (Courtesy of Richard P. Usatine, MD.)

Phototoxic drug reaction secondary to treatment of vitiligo with oral psoralen and ultraviolet light (phytophotodermatitis). Note the bullae. (Courtesy of Richard P. Usatine, MD.)

Phytophotodermatitis in a woman, caused by lime juice and sun exposure on the beach. Note the hand print of her fiancé who had been squeezing limes into their tropical drinks. This contact occurred when they posed for a photograph. (From Darby-Stewart AL, Edwards FD, Perry KJ. Hyperpigmentation and vesicles after beach vacation. Phytophotodermatitis. J Fam Pract. 2006;55(12):1050-1053. Reproduced with permission from Frontline Medical Communications.)

Phytophotodermatitis visible on the arm, trunk, and leg caused by lime juice and sun exposure on the beach. Note the hyperpigmentation that occurs in conjunction with the erythema. (From Darby-Stewart AL, Edwards ...