Medicine site: dried roots. Nature and flavor: sweet, slightly cold in nature. Efficacy: nourish yin and clear lungs, nourish the stomach and promote fluid, resolve phlegm, replenish qi. Indications: Used for lung heat, dry cough, yin deficiency, cough, dry cough, sticky sputum, lack of stomach yin, lack of food and vomiting, insufficient qi and yin, and dry mouth.