Ear pain, need to be alert to otitis externa, external auditory canal boils, otitis media, ear neuralgia and other diseases. 1. Otitis externa: generally diffuse infectious inflammation of the skin or subcutaneous tissue of the external auditory canal, with swelling and pain in the ear, aggravated by chewing and talking, and localized congestion and edema of the external auditory canal commonly seen on examination, sometimes with flow of viscous fluid. 2. External auditory canal boil: limited purulent inflammation of the skin of the external auditory canal, with severe paroxysmal pain in the ear, which is more obvious when opening the mouth, chewing or pulling the ear. 3. Otitis media: especially acute suppurative otitis media, often with throbbing ear pain, aggravated by coughing, accompanied by pus in the ear, stuffy feeling in the ear, hearing loss, tinnitus and other symptoms. Examination of the tympanic membrane can be seen to have congestion, perforation, purulent secretion attached. 4. Ear neuralgia: pain caused by the nerve in the ear, often manifested as deep paroxysmal pain in the ear, with no special discomfort in the intermittent period. Therefore, it is recommended to consult a doctor in time when ear pain occurs, to clarify the cause of the disease and treat the symptoms.