Thick tongue coating is mostly due to dampness or phlegm and drink (pathological products formed by water metabolism disorders), dietary stagnation, etc., and need to be targeted to regulate. 1. Dampness or phlegm-drinking stagnation: you can choose some drugs with the function of dispelling dampness and resolving turbidity and phlegm-drinking, such as Er Chen Pill, Xiang Sha Liu Jun Pill, Xiao Qing Long Combination, etc., and pay attention to the diet to avoid oily and cold food, and try to avoid the wind and keep warm. 2. Dietary stagnation: some medicines with the function of eliminating food and resolving stagnation can be chosen to regulate, such as Baohe Pills, Citrus Aurantium Pills, Da Shanzha Pills, Mu Xiang Betel Pills, etc., and pay attention to the diet of light and easy to digest, eat less and more often, avoid overeating and overfeeding, and develop good eating habits. It is recommended that people with thick and white tongue coat should consult a professional doctor in time. All of the above drugs should be used under the guidance of a doctor.