Yellowish and greasy tongue moss belongs to yellow greasy moss, suggesting that dampness and heat are embedded in the human body, and the treatment is to clear away heat and dampness. In a healthy state, the surface of the tongue should be a thin layer of white moss, known as thin white moss. When the tongue moss is yellowish in color and thick and greasy, it suggests that the body contains dampness and heat, and can be adjusted with medicines that clear away heat and dampness. Commonly used Chinese medicines include Huanglian, Scutellaria baicalensis, Coix lacryma, Huangbai, etc. Commonly used proprietary Chinese medicines include Ermiao Pills, Si Miao Pills, Sanren Combination, etc. Most of the heat-clearing and dampness-eliminating Chinese medicines and proprietary Chinese medicines are cold, and should not be taken by people with deficiency of spleen and stomach (spleen and stomach weakness and cold). Patients with yellowish and greasy tongue coating should consult a doctor in time, and use medicines reasonably under the guidance of a physician’s diagnosis.