Ear into the fly should promptly seek medical attention, drops of surface anesthetic, instillation of oil by the doctor to remove the fly, can also be used in the ear canal mouth light method. 1. Injecting oil: Oil can be used to fill the external ear canal to wrap the fly, so that the fly suffocates, such as sesame oil, olive oil, etc., and then sucked out by suction with the help of the doctor. 2. Surface anesthetics: After dropping surface anesthetics such as lidocaine into the ear canal, the fly is anesthetized and then removed by suction. 3. Lighting of the ear canal opening: If the fly is relatively small, you can go to a darker room and shine a bright light at the opening of the external ear canal. Because flies are phototropic, they may seek the light and fly out of the outer ear canal. Avoid using hard objects such as ear picks to pull out your ears, which increases the risk of infection and should be treated promptly by a doctor.