Cerumen, commonly known as earwax or earwax, is the normal secretion of ceruminous glands in the external auditory canal, which has a protective effect on the external auditory canal and can usually be discharged on its own through chewing, speech and normal activities. If cerumen is over-produced or its discharge is obstructed to form a ceruminous embolism, it needs to be removed medically by medical means after consultation. 1. Cerumen that does not completely block the external auditory canal and has good mobility can be removed directly with knee forceps or cerumen hooks. Softer cerumen is removed one at a time by separating it from the wall of the external ear canal. Harder cerumen should be removed by peeling a slit from the upper posterior wall of the external auditory canal, and then using a cerumen hook to penetrate the cerumen and remove it slowly. 2. For cerumen that is difficult to remove, 5% sodium bicarbonate solution can be applied to the external auditory canal for 2-3 days before removal. After the cerumen has softened, it can be removed by saline rinsing or suction with a suction device. For those who have a lot of cerumen, it is recommended to go to the hospital and have the cerumen removed by the doctor under the professional instrument, do not operate violently on your own, so as not to damage the ear canal.