Children are prone to earwax buildup in the ear canal because the ear canal is thin, and earwax does not easily drain out on its own. If the earwax is in the ear canal for a long time, it may block the ear canal and affect hearing. If the earwax gets into water locally, it can easily cause local infection in the ear canal and induce otitis externa, tympanitis or even otitis media. Therefore, for larger earwax in children, it is recommended to go to an ENT clinic and let the doctor examine it. If the earwax is at the mouth of the ear canal, you can let the doctor take it out directly with tweezers. If the earwax is deep or hard, you can soften the earwax with ear drops first, soften it for about 3-4 days before going to the hospital, and the doctor can flush it out with an aspirator or saline. Some patients have hard earwax and it may take 2 or 4 times to get the earwax out.