Children with particularly hard earwax need to be alerted to conditions such as cerumen embolism and are advised to go to the hospital to be disposed of by a clinician. Cerumen is a secretion from the ceruminous glands of the external auditory canal, and a small amount of cerumen can maintain the lubrication of the external auditory canal. As the external auditory canal is relatively narrow in children, cerumen can easily form clumps when it accumulates, blocking the external auditory canal and forming hard lumps in the long term. Removing cerumen hastily may cause damage to the skin or mucous membrane of the external auditory canal, so it is recommended to go to the hospital and have it treated by a professional doctor. Clinicians will judge the nature of the cerumen, and generally use knee forceps or cerumen hooks for lumpy cerumen, and negative pressure suction for oily or creamy cerumen, and suction can be used cautiously if it is difficult to remove the cerumen; for those whose location is deep and close to the tympanic membrane, 3% to 5% sodium bicarbonate can be used to soften the cerumen for about 2 days and then rinse it out. For those who are infected, anti-inflammation should be carried out first, and the cerumen should be removed in stages after the inflammation is eliminated. When cerumen impaction occurs, it is recommended to go to the hospital in time.