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A 32-year-old man consulted his medical care provider in June because of persistent acne. Two months earlier he had been prescribed a benzoyl peroxide wash and doxycycline (100 mg twice daily). Four days after starting a new outdoor job, he noted burning and erythema on his cheeks, nose, and lips. The erythema intensified, blisters appeared on the lower lips, and the pain ranged from moderate to intense. Examination showed erythema on the face that was most intense on the cheeks, nose, and upper lip. The vermilion border of the lower lip appeared to have undergone impetiginization, with erosions and crusting. . . . [Full Text of this Article] |