Pus in the ear canal can be the result of acute diffuse otitis externa or boils of the external auditory canal and is usually caused by a localized bacterial infection. It requires anti-infective treatment under the premise of removing pus and keeping the external ear canal clean, and in serious cases, surgery is needed to clean up the necrotic tissue. 1. Clean the external auditory canal: If there is pus in the ear canal, you can follow the doctor’s instructions to use 3% hydrogen peroxide and saline to clean the external auditory canal, which can reduce the local inflammatory reaction to a certain extent. 2. Active anti-infective: local application of of ofloxacin, meloxicam and other antibiotics ear drops ear baths, take cefixime or amoxicillin clavulanate potassium and other antibiotics to inhibit bacterial infections, for immature boils on the external auditory canal can be applied locally erythromycin and polymyxin B ointment treatment. 3. Surgical treatment: ear canal pus sometimes local lesions are relatively large, and may even form abscesses, which should be timely surgical incision of abscess tissues to discharge pus, and at the same time, appropriate drainage treatment. Patients with pus in the ear canal need to actively seek medical attention, after a clear diagnosis and condition, follow the doctor’s instructions for standardized treatment.