Otitis externa is usually divided into two categories, one is limited otitis externa and the other is diffuse otitis externa. 1.Medication: If otitis externa is in the early stage, it can be treated by hot compresses or physical therapy such as ultrashort wave heat transmission. Severe patients need to use antibiotics to control the infection and also take sedative and analgesic; patients with otitis externa can apply phenol glycerin or ichthyol glycerin locally, and pus and secretions from the external ear canal should be cleaned with hydrogen peroxide in time. Actively treat infected lesions, such as purulent otitis media, etc. It is also important to have timely checkups and treat systemic diseases that may accompany it, such as diabetes. 2. Surgical treatment: In case of acute otitis externa, once the boil matures, surgical incision and drainage should be performed in a timely manner. Usually, the above two methods are adopted for the treatment of otitis externa. Once otitis externa is detected, patients should undergo timely treatment to avoid aggravating the condition. At the same time, they should also pay more attention to their diet and life, avoid spicy stimuli, and actively exercise to increase the resistance of the body.