Mold infection of the external auditory canal, which is a fungal disease of the external auditory canal, can be treated by standardized surgery and topical antifungal medication. External auditory canal mycobacterial infection can be caused by water in the external auditory canal, long-term antibiotic ear drops or accumulation of secretions and other conditions with fungi such as mycobacterial infections, there is an itchy and stuffy sensation in the ear, and the examination shows that the external auditory canal and eardrum are covered with powdery or fluffy fungi. Feasible debridement, remove granulation, necrotic tissue pus, with 1% to 3% salicylic acid ethanol solution or 1% to 2% muscimol ethanol solution coated ear. Can be sprayed on the external auditory canal with mycotoxin or coated with imidazole broad-spectrum antifungal drugs. Choose sensitive antifungal drugs according to fungal culture results. Keep the external auditory canal as dry as possible. Systemic application of antifungal drugs is usually not required. Itching, discomfort and other symptoms in the external auditory canal in the diagnosis of fungal disease of the external auditory canal, should promptly consult a doctor and follow the doctor’s instructions to standardize the use of drugs and treatment.