Lung disorders are usually characterized by a lack of lung qi, lung deficiency, or lung qi deficiency, or lung yin deficiency. Dr. Sheng-Pu Lee said that the main manifestation of Lung Qi failure is coughing, which may be accompanied by phlegm, itchy throat or hoarse voice; Lung deficiency is characterized by coughing and Qi rebellion, which can be seen as dry cough without phlegm or little phlegm, dry throat, hoarse voice, sticky phlegm and chest tightness; Lung Qi deficiency is characterized by general weakness, fatigue and lethargy, weak speech volume, coughing and shortness of breath, easy nasal congestion and colds; Lung Yin deficiency is commonly seen as emaciation, poor physical strength, dry cough with little phlegm and shortness of breath. The symptoms of lung yin deficiency include weight loss, poor physical strength, dry cough with little phlegm and shortness of breath.

Chinese medicine doctors often use Poria to enter the lung to main chest rebellious Qi, Guajiao root to clear the lung and moisten dryness, ginseng to nourish the lung and calm asthma, almond to moisten the lung, stop cough and disperse wind, etc. The combination of various drugs helps to nourish the lung, clear phlegm and suppress cough.