For example, a white, greasy tongue indicates cold in the body; a white, thick, greasy tongue indicates severe phlegm and dampness, which requires strengthening the spleen and removing dampness; a white, thick tongue needs to be treated in different ways for different symptoms. If the tongue is white and greasy, white mucus is seen on the surface of the tongue, which indicates phlegm and dampness, which means that the spleen and stomach are cold and mixed with dampness. White tongue indicates that the body is heavy with cold, usually due to excessive intake of cold food or greed for cold food, such as the appearance of white tongue, should reduce the intake of cold food to avoid cold body, can be appropriate to drink cold soup or ginger boiled water. White and moist tongue indicates serious cold and dampness in the body, such people are prone to edema and phlegm. Do not eat cold food and iced drinks, and eat more mild food, you can take appropriate Chinese medicine to regulate the cold damp body, cold dampness can be reduced after the edema can also subside, the tongue can also basically return to normal. The thick tongue can be used as a tea substitute, choose patchouli, pelargonium, honeysuckle 5 grams each, cotton Yin Chen 2 grams, such as constipation can be added cassia seeds 10 grams, boiling water, to be warm to drink, can effectively relieve the body of cold damp. Patients with white greasy tongue should minimize cold foods and eat more foods that warm the kidneys and nourish the yang, such as mushrooms, yams, chestnuts, red dates, pork belly, etc., which can assist in strengthening the spleen and removing dampness.