2, tangerine peel and medlar soaked in water can eliminate phlegm, eliminate food stagnation, strengthen stomach, nourish liver and kidney, improve eyesight and nourish blood, and enhance people's immunity. Pericarpium Citri Tangerinae is a commonly used Chinese medicine, which tastes bitter and warm, and has the effects of invigorating spleen, eliminating dampness and resolving phlegm, relieving boredom and keeping fragrance, reducing adverse reactions and stopping vomiting. Traditional Chinese medicine's "Chenpi Banxia Decoction" and "Erchen Decoction" mainly rely on Chenpi to treat diseases. Chinese patent medicines mainly containing dried tangerine peel, such as dried tangerine peel of Bulbus Fritillariae Cirrhosae, dried tangerine peel of snake gall, dried tangerine peel of licorice, dried tangerine peel paste, dried tangerine peel powder, etc. It is a good medicine for resolving phlegm, relieving qi and strengthening stomach. It is suitable for people with epigastric fullness, dyspepsia, loss of appetite and cough with excessive phlegm.