The common causes of ear infection with stuffy sound are cerumen embolism, mycotic otitis externa, acute otitis media, etc. The treatment methods are different for different causes, and it is recommended to consult the doctor in time, and the common treatments are medication, surgery, and so on. 1. Cerumen impaction: In addition to the symptom of stuffy ears, cerumen impaction will also have symptoms such as tinnitus and hearing loss, etc. After removing the cerumen impaction under otoscopy, the patient’s symptoms will disappear immediately. 2. Mycotic otitis externa: there will be ear stuffiness, tinnitus, hearing loss and other symptoms, clean up the mycobacterial mass of the external auditory canal after the doctor’s guidance to give anti-mycobacterial ointment for application, such as ketoconazole, miconazole nitrate ointment, etc., after the mold infection is under control, the symptoms will be completely relieved. 3. Acute otitis media: acute otitis media will have ear stuffiness, tinnitus, hearing loss and other symptoms, follow the doctor’s instructions to use anti-inflammatory drugs, such as cephradine, cefprozil, etc., the inflammation is under control, the symptoms will gradually reduce. There are other possibilities for the symptoms of ear infections and stuffy sound, so it is recommended to consult a doctor in time to avoid delaying the condition.