Swelling and pain inside the cochlea is usually deep in the ear canal, and the swelling and pain cannot be pinpointed to the cochlea. Swelling and pain deep inside the ear canal are common diseases such as acute otitis media, herpetic tympanitis and acute otitis externa, etc., which need to be diagnosed and treated according to the specific diseases. 1. Acute otitis media: acute otitis media is caused by upper respiratory tract infection or middle ear pressure injury, etc., which is characterized by tympanic membrane congestion, swelling and pain. Patients can follow the doctor’s instructions to use drugs such as erythromycin, cefuroxime, prednisone and so on to relieve symptoms. 2. Herpetic tympanitis: caused by viral infection, manifested as sudden and severe pain in the deep part of the ear, accompanied by a feeling of ear stuffiness and mild hearing impairment, resulting in swelling and pain inside the cochlea. Patients can take medicines such as ribavirin and acyclovir as prescribed by the doctor for treatment, and at the same time, the blisters can be punctured under sterile conditions as prescribed by the doctor in order to alleviate the symptoms. 3. Acute otitis externa: Inflammation of the external ear canal caused by viral and bacterial infections, manifested by severe pain and accompanied by swelling of the ears, tinnitus, hearing loss and so on. Can be prescribed external levofloxacin ear drops, boric acid ice chips ear drops, and systemic drugs such as: cefixime, amoxicillin, cefuroxime and other anti-infective treatment. The symptoms of swelling and pain in the ear continue to be unrelieved, it is necessary to consult a doctor for a clear diagnosis, and follow the doctor’s instructions to standardize the use of medication and treatment.