The symptoms of dry mouth and tongue can be seen in the Lung-Heat-Tsuin-Injury (the presence of heat in the lungs, which continuously depletes the body’s fluids) syndrome of Consumption of Thirst. Thirstiness disease is due to innate endowment insufficiency (innate constitution and poor functioning), compounded by emotional and emotional disorders, dietary disorders and other causes of Yin deficiency and dryness and heat as the basic pathology, with polyuria, polydipsia, polyphagia, fatigue, emaciation, or urine with a sweet taste as the typical clinical manifestations of a disease. Consumption of thirst lung heat and fluid injury (heat evil in the lungs, continuous depletion of the body’s fluid) evidence can be manifested as thirst and excessive drinking, dry mouth and tongue, frequent and excessive urination, the treatment should be clearing heat and moistening the lungs (clearing the heat evil in order to moisturize the lungs), and generating fluids and quenching thirst (to promote the production of fluids to quench thirst), can be used to quench the thirst formula. When discomfort occurs, one should consult a doctor in time, and choose medication under the guidance of physician’s diagnosis and guidance, and should not use medication on one’s own in order to avoid delaying the condition.