The most common causes of pus inside the ear are, acute suppurative otitis media and chronic suppurative otitis media. Acute suppurative otitis media is often caused by bacterial infection and inflammation of the middle ear cavity, and its most common symptoms are ear pain, pus flow, hearing loss, ear stuffiness, etc. Clinically, this condition is first recommended to take oral antibiotics such as cefaclor extended-release tablets (II) and local ear bath treatment, common ear bath drugs such as boric acid ice drops, etc., and generally through this treatment can be improved, if not improved can be intravenous Generally, acute suppurative otitis media can be improved quickly through the above treatment. Chronic suppurative otitis media. Chronic suppurative otitis media is caused by recurrent inflammation of the middle ear cavity for more than three months, and the most common clinical symptoms are recurrent ear pus, hearing loss, stuffy ears, tinnitus, etc. First, it is recommended to have a CT of the middle ear mastoid to see the severity of the otitis media. Early repair of the perforation is recommended to prevent deterioration of the condition. So if there is pus in the ear, first of all, don’t worry about it, you can go to the ENT department of your local regular hospital and let the doctor clean up the purulent discharge from the ear, see if the eardrum is perforated, and provide targeted anti-infection treatment according to the specific condition.