What is the role of psoralen plus ultraviolet light A (PUVA) in the treatment of nail psoriasis?

Updated: Jun 25, 2021
  • Author: Cindy Li, DO; Chief Editor: William D James, MD  more...
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Psoralen plus ultraviolet light A (PUVA) is very effective for cutaneous psoriasis and can improve nail psoriasis. Both oral and topical PUVA therapies have improved nail psoriasis in 3-6 months. A possible adverse effect of PUVA may be nail discoloration.

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