Abstract: To report a case of tinea faciei caused by Trichophyton mentagrophytes which had been misdiagnosed for a long time. A 37-year-old female presented recurrent erythema, papule and blister on her face, accompanying with itching. She was misdiagnosed as Herpes simplex, Impetigo, Eczema, Skin infection, Seborrheic dermatitis and Acne rosacea, and successively treated with anti-viral, anti-bacterial and antianaphylaxis drugs. The lesion didn't resolve, but gradually expanded. After fungal examination, she was diagnosed as tinea faciei caused by Trichophyton mentagrophytes. The patient was cured by oral terbinafine combined with bifonazole cream.

Key words: Trichophyton mentagrophytes, tinea faciei, misdiagnosis