Tinea Barbae (Barber's Itch) By Denise M Aaron, MD, Dartmouth Geisel School of Medicine Reviewed / Revised Sep 2021 | Modified Sep 2022 View Patient Education Diagnosis Treatment Topic Resources Tinea Barbae Tinea Barbae (Annular, Erythemato... Tinea barbae is a dermatophyte infection of the beard area most often caused by Trichophyton mentagrophytes or T verrucosum.