After ear drops enter the ear canal, there are a variety of reasons that can cause a blocked feeling in the ear, and the time it takes to disappear varies from person to person. Ear drops are aqueous agents that affect the vibration of the eardrum after entering the ear, resulting in a blockage sensation. The blockage sensation usually disappears gradually after 1 day as the ear drops evaporate. If there is cerumen in the ear, the cerumen will absorb water and swell after the patient applies the ear drops, thus blocking the outer ear canal and causing a blocked feeling in the ear. It is recommended that the patient visit the ENT department of the hospital, and the blocked feeling will disappear after the doctor clears the cerumen in the ear. In addition, ear blockage can also be caused by otitis media. Patients are advised to go to the hospital for otoscopic examination to see the specific situation of the ear canal and anti-infection treatment to relieve the symptoms. Patients are advised not to use ear drops blindly in daily life, avoid straining and getting cold, work and rest regularly, keep a good state of mind, and go to the ENT department promptly after symptoms appear.