Mold in the ear and yellow water may be present with fungal disease of the external auditory canal or fungal tympanitis and otitis media. General, local and systemic treatments should be chosen according to the cause and extent of the disease to control the disease and relieve the symptoms. 1. General treatment: Stop digging the ears. 2. Local treatment: wash and dry with saline or 3% hydrogen peroxide and apply miconazole nitrate, clotrimazole ointment, 1% spirit salicylic acid, 1% amphotericin B ointment. When the skin of the external ear canal is swollen, yellow water can be placed in a small tampon containing 5% lead acetate solution, replaced 1-2 times a day. 3. Systemic treatment: severe cases need to use oral antifungal drugs, such as itraconazole, fluconazole, ketoconazole, amphotericin B and so on. It is recommended that patients go to the hospital, standardize the use of medication and treatment under the guidance of the doctor, do not use drugs without authorization, so as to avoid adverse consequences.