Doxycycline Phototoxicity: A Cautionary Tale for Travelers

A case of a 16-year-old girl presented to the dermatology clinic with erythema on the dorsal aspect of her hands. She had recently visited Peru for three weeks, where the erythema initially started. She was taking doxycycline, 100mg twice daily, for her acne throughout her trip as her malaria prophylaxis. Physical exam revealed erythematous patches with vesicles over the dorsal aspect of the first and second digits of both hands (Figure 1). Further history indicated that while hiking in Peru, she was utilizing hiking poles that positioned the affected areas in direct exposure to intense sunlight.

source https://www.jpeds.com/article/S0022-3476(21)01237-3/fulltext?rss=yes

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