Tongue coating can be cleaned by toothbrush, tongue scraper and other tools. Tongue cleaning can be done with a toothbrush. Use the toothbrush to gently brush the surface of the tongue a few times, but don’t clean the tongue too hard or excessively, as it can easily cause damage to the mucosal tissues of the tongue if it is too hard or excessive. This can be done in conjunction with daily brushing and then cleaning the dirt with water until it is clean. In addition, you can also use a tongue scraper to clean the tongue, can be repeated many times to achieve the effect of cleaning, not too hard to avoid scratching the tongue. Oral hygiene should be paid attention to in daily life, if too much bacterial residue breeding on the tongue, it will lead to bad breath or affect the health of the teeth, and may even induce oral, respiratory and other diseases because of too much breeding bacteria. When cleaning the tongue, it is important to avoid the frequency is too frequent, so as not to cause damage to the tongue.