耳屎对保护人类的耳朵有很重要的作用，而有时人们需要清理一下它
Experts at N.I.H., the National Institutes of Health, suggest some ways to treat excessive earwax yourself. They say the wax can be softened with mineral oil, glycerin or ear drops. They say hydrogen peroxide or carbamide peroxide may also help. Another w…