Most of the cerumen embolism and secretory otitis media are considered to be caused by ear blockage. Cerumen embolism is caused by long-term cerumen accumulation, which can cause ear stuffiness and hearing loss, and needs to be removed. If it is accompanied by inflammation of the external ear canal, oral antibiotics such as cefprozil can be taken. In contrast, secretory otitis media is mostly caused by upper respiratory tract infections, which can cause congestion and swelling of the mucous membrane in the nasal cavity and nasopharynx, resulting in congestion and edema of the eustachian tube. Air cannot enter the tympanic cavity through the eustachian tube, causing negative pressure inside the tympanic cavity, thus causing a feeling of congestion in the ear. Treatment requires control of the infection and improvement of the function of the eustachian tube, which can be done with oral antibiotics such as cefprozil. If necessary, hormones, such as prednisone, and mucus promoters can be added. Nasal spray of tretinoin will reduce congestion and swelling of the eustachian tube and improve the function of the eustachian tube, thus eliminating the stuffy feeling in the ear. Therefore, if your ears always feel blocked, you need to check the cause of the problem in order to treat it properly.