Oral minoxidil improves background hair thickness in lichen planopilaris

Abstract

To the Editor: Lichen planopilaris (LPP) is the second most common primary cicatricial alopecia,1 and its treatment is challenging. A number of agents have been used to stop disease progression, including corticosteroids (topical, intralesional, and systemic), antimalarial drugs, doxycycline, pioglitazone, and systemic immunosuppressants. Another goal of treatment is to improve hair thickness in unaffected areas of the scalp to better conceal the areas of hair loss. Although platelet-rich plasma2 and low-level laser light therapy3 have been reported to promote hair growth, topical minoxidil is the most frequently used adjunctive therapy.