Case reportsLichen planus is a T-cell–mediated immunological disorder causing inflammatory lesions
on the skin and oral mucosa. The etiology of lichen planus remains unknown, and the
current therapeutic strategy is primarily to manage the symptoms. Although topical
steroids are commonly used in the treatment of lichen planus, there are lesions refractory
to steroids that require different treatment options. This report is of a patient with bilateral
erosive oral lichen planus of the buccal mucosa. The lesions did not respond to highpotency
topical steroids, so they were treated with topical tacrolimus 0.1% ointment, a
potent topical immunosuppressant. All the erosive lesions healed, and the associated
pain and bleeding disappeared after 6 weeks of treatment.published_or_final_versio