It is normal for children to have earwax, which is also called cerumen. There are cerumen glands in the skin of the external auditory canal, and it is normal for cerumen glands to secrete cerumen. If there is not much flaky earwax, you don’t need to pull it out because earwax has a certain protective effect on the tympanic membrane, for example, it can reduce the stimulation of the tympanic membrane by strong sound when encountering strong sound; for example, earwax can stop small insects from crawling into the ear, and the flaky earwax can play a role in blocking it. However, if the earwax is oily and thicker and more abundant, it blocks the outer ear canal and causes hearing impairment. Infection has caused otitis externa and acute tympanitis, and such earwax must be treated. Use 5% sodium bicarbonate to fill the external auditory canal, 15 minutes at a time, repeated immersion for three days, the external auditory canal is more viscous, more earwax soaked into the mud-like, to the hospital otology outpatient clinic, with negative pressure suction sucked out, cleaned up more cleanly.