Earache refers to pain in or around the ear, which can be divided into primary earache and secondary earache. Primary earache is caused by ear diseases, such as external otitis, furuncle of external auditory canal, cerumen embolism, bullous tympanitis, acute otitis media, etc. Secondary earache can be caused by diseases of adjacent or distant organs, such as the mouth, pharynx, throat, temporomandibular joint and neck. It is caused by nerve reflex, such as temporomandibular arthritis, tonsillitis, and peritonsillar abscess. These diseases have different etiology and pathological characteristics. The treatment varies with different clinical manifestations. For example, acute otitis media can be treated with ear drops, and acute tonsillitis is treated with penicillin. If you have earache, it is recommended to go to the hospital to see an otolaryngologist.