Smell in the ear may be caused by cerumen impaction, otitis media, cholesteatoma of the external ear canal, etc. Patients may have their cerumen cleaned out by a doctor, use medication or undergo surgical treatment. 1. Cerumen impaction: The smell in the ear may be caused by the accumulation of cerumen in the ear canal that has not been cleaned out for a long time. It can be removed by the doctor through ear tweezers and cerumen hooks. For cerumen with poor mobility and hardness, it can be softened with sodium bicarbonate ear drops and then rinsed out of the external ear canal or suctioned out with a suction device. 2. Otitis media: In patients with otitis media, pus may form in the ear canal, accompanied by a certain odor. At this time, we should first clean and rinse the external ear canal, and then follow the doctor’s instructions to use drugs such as cephradine to control the infection. At the same time, you can also use ofloxacin ear drops, chloramphenicol ear drops and other drugs to point the ear treatment. 3. Cholesteatoma of the external auditory canal: patients may have symptoms such as blockage of the external auditory canal, pain, hearing loss, etc., and foul smell when infected. Surgery is usually required to remove the cholesteatoma of the external auditory canal. If there is a smell in the ear, it is recommended to consult the hospital in time for standardized treatment.