Ear stuffiness is mostly caused by inaccessibility or partial blockage of the eustachian tube, so anything that causes the above can be caused. Common causes include colds, upper respiratory tract infections and polyps in the nasal cavity, nasopharyngeal carcinoma, adenoid hypertrophy, etc. Therefore, first of all, we need to identify the cause and treat the symptoms. If the upper respiratory tract infection is caused by nasal 1% furosemide nasal drops, as well as antibiotics, such as cefprozil, if necessary, puncture and fluid extraction. If the obstruction is mechanical, except for nasopharyngeal cancer, surgical treatment is needed, such as adenoid scraping and nasal polypectomy, and radiation therapy is needed for nasopharyngeal cancer. Therefore, they need to be treated differently in order to get results. Some of the symptoms of ear congestion are caused by cerumen in the external ear canal and cholesteatoma in the external ear canal, which can be examined and treated in the hospital; some of the symptoms of ear congestion may be related to inner ear diseases such as low frequency hearing loss, membranous vagal effusion, and Meniere’s disease, which need to be diagnosed and treated in the hospital through pure tone audiometry and other related examinations.