How many psoralen plus UV-A (PUVA) treatments are needed for regrowth in alopecia areata?

Updated: Aug 06, 2020
  • Author: Chantal Bolduc, MD, FRCPC; Chief Editor: Dirk M Elston, MD  more...
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The number of treatments required for regrowth varies, but 20-40 treatments usually are sufficient in most cases.

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