In Chinese medicine, lung dryness is mainly seen in the evidence of wind-dryness injuring the lung and lung-yin deficiency. The main symptoms include dry cough, continuous choking, itchy throat, dry and sore throat, dry lips, no or little phlegm, phlegm not easily coughing out, blood in the phlegm, initially accompanied by nasal congestion, headache, fear of cold, bad wind and other symptoms. Lung Yin deficiency is usually treated with Sha Shen Mai Dong Tang with addition and reduction, which has the effect of nourishing Yin and moistening the lung, resolving phlegm and relieving cough. The main symptoms include dry cough, short coughing sound, little sticky white phlegm, blood in the phlegm, gradually hoarse voice, dry mouth and throat or afternoon hot flashes, red cheek, night sweating, gradually losing weight, and fatigue. Usually, you can drink a decoction of honeysuckle, xuan ginseng, maidenhair, orris, licorice and fat sea as tea substitute, which has the effect of clearing heat and moistening the lung.