Stuffy ears after ear drops are mostly caused by otitis media and otitis externa after treatment. In the case of otitis externa and otitis media, you need to perform 3% hydrogen peroxide to clean the external ear canal and then use levofloxacin ear drops for sterilization. In the case of these diseases, there are more purulent secretions and cerumen in the external ear canal, which can easily cause swelling and blockage of the ear after using the above mentioned drugs. At the same time, antibiotics and other treatments are needed to control inflammation, otherwise it will also cause secretions, such as cefprozil, and if necessary, hormones such as prednisone can be given, and local medication needs to be strengthened with drops of medication after each cleaning. After the above treatment, the inflammation in the external ear canal or tympanic chamber will be controlled and no discharge will be produced, and there will be no sensation of ear stuffiness, etc.