A case of phototoxic onycholysis secondary to treatment with doxycycline is presented. Tetracyclines are known to provoke photosensitivity reactions in some individuals exposed to sunlight. The typical photo-toxic manifestation is erythema, but cases with onycholysis have also been reported in the past. With travel to regions with sunny climates it will be important to be aware of the risk of developing onycholysis following the use of tetracyclines and to avoid the most potential phototoxic derivates, especially doxycycline.
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