After tongue fire, you should drink more water, keep a light diet, eat more fresh vegetables and fruits, and the texture of fruits should not be particularly hard to avoid local trauma to the mucosa. You can eat fruits such as watermelon, kiwi, cherries, mango, grapes, grapefruit and passion fruit, which can provide enough vitamin C to facilitate the healing of tongue mucosal diseases and have the effect of clearing heat and removing fire, or you can squeeze apple or white pear into juice and drink it. If the redness and pain of the mucous membrane inside the mouth are obvious, you can take appropriate Chinese medicines for clearing heat and detoxifying, such as clearing fire gardenia cereals, niuhuang detoxification tablets and niuhuang Shangqing pills, or you can drink tea with the function of clearing heat and lowering fire, such as honeysuckle tea, chrysanthemum tea, bamboo leaf tea and barley tea. If there are blisters on the mucous membrane of the tongue and inside the mouth, you can take anti-viral drugs, such as Banlangen granules.