An ear knot inside the ear is said to be cerumen inside the ear canal. Cerumen is a normal secretion from the ear canal, a physiological phenomenon inherent in human beings. Cerumen has a certain protective effect inside the ear canal, protecting the tympanic membrane from external damage. Cerumen in the ear canal can be discharged slowly and on its own from the ear canal when a person opens his mouth to speak or when he walks and does not require special treatment. If some patients have thin ear canals or ceruminous glands that produce more cerumen, cerumen blockage may require treatment. There are the following ways to deal with cerumen: 1. If the patient goes to the ENT department, if the cerumen in the ear canal is thin and soft, the doctor can use suction to suction out the cerumen; 2. If the patient has a lot of cerumen and the cerumen is particularly hard, it is recommended that the cerumen can be softened by using sodium bicarbonate ear drops, and the cerumen can be softened for 3-4 days, then go to the hospital again, and the doctor can use saline to flush out the cerumen. For the cerumen, it is recommended to get it out. If it is not gotten out for a long time, it is easy to induce the infection of the external ear canal, or the cerumen is too much clogged, which will easily cause the patient’s hearing loss.