Chinese medicine often use tongue coating as one of the diagnostic methods, according to the different changes in the tongue coating, to diagnose the body’s existing or potential diseases, for example, white greasy tongue coating indicates that there is cold in the body; white greasy moss indicates that phlegm and dampness is serious, need to strengthen the spleen to remove dampness; white thick tongue coating, etc. need to be adjusted in different ways for different symptoms. The tongue coating white thick greasy, visible tongue coating surface white mucus can be seen in phlegm dampness, indicating that the spleen and stomach cold mixed with dampness, the treatment should be to warm the spleen to strengthen the main; such as chest boredom, can be added to relieve depression and tranquilize the spirit of the drug; if there is no other symptomatic manifestations, can be appropriate to take tonic in the qi pills, daily life should be open-minded, to quit the cold. The white tongue coating indicates that the body is heavy cold, generally due to excessive intake of cold food or gluttony caused by cold food, such as white tongue coating has occurred, should reduce the intake of cold food, to avoid the body from being cold, and can be appropriate to drink cold-expelling soup or ginger boiled water. Tongue coating white and moist that the body cold and damp serious, such people easy edema, phlegm. Usually do not eat cold food and iced drinks, while eating more mild food, can be appropriate to take Chinese medicine to regulate cold and dampness, cold and dampness can be reduced after the edema can be subsided, the tongue coating can be basically restored to normal. Tongue white thick can be used as a tea drink, choose patchouli, peperomia, honeysuckle 5 grams each, 2 grams of cotton, such as constipation can be added to the cassia 10 grams of boiling water, to be warmed up to drink, can effectively relieve the body of cold and dampness. Tongue white greasy patients, plain should minimize cold food, can be appropriate to eat more warm kidney yang replenishment of food, such as mushrooms, yams, chestnuts, jujubes, pork belly, etc., can assist in strengthening the spleen in addition to dampness.