Usually, fungal otitis externa can be treated with topical antifungal medications. Patients infected with fungal otitis externa first need to clean the external auditory canal with 3% hydrogen peroxide or saline to remove fungal clumps and scabs, and then use topical antifungal drugs such as miconazole nitrate to eliminate the fungus. Antifungal medications may be given intravenously in severe cases. When the patient’s external ear canal skin is swollen and oozing, it can be treated by placing a small tampon containing 5% lead acetate solution into the external ear canal, which can help the absorption of pus in the ear and help the recovery of the disease, and the small tampon needs to be changed 1 to 2 times a day. All of the above medications and operations need to be carried out correctly and in a standardized manner under the guidance of a doctor to avoid adverse effects. Patients should pay attention to keep the external ear canal dry and clean on a daily basis, do not dig the ear frequently. Patients should not blindly use antibiotic drugs to avoid causing dysbiosis and drug resistance.