The difference between moistening the dryness and moistening the lungs is that moistening the lungs is a treatment in which moistening is applied to the specific lungs, while moistening the dryness is the use of nourishing medicines in order to treat the evidence of dryness and heat. There are two types of dryness: internal dryness and external dryness. External dryness is caused by exogenous dryness, while internal dryness is caused by loss of internal fluid. Moisturizing dryness is divided into “light propaganda moisturizing dryness”, “sweet and cold moisturizing”, “clearing the intestines moisturizing dryness”, “nourishing yin moisturizing dryness”, “Nourishing blood and moistening dryness” and so on. Moistening the lung with formulas that have the effect of nourishing yin and moistening dryness, the treatment of lung yin deficiency, lung dryness evidence of the cure. It belongs to one of the moistening and drying treatments which is specifically applied to the lungs. Such as moistening the lungs to resolve phlegm, moistening the lungs to stop coughing. Because the lung likes moist and hates dryness, dryness is most likely to deplete the lung fluid, thus leading to dry throat and nose, dry cough and little sputum. If there is a dryness and heat evidence, you should consult a doctor in time, according to the physician from the patient’s condition, physical condition to determine the treatment, do not blindly use drugs.