Citrus aurantium and Citrus aurantium are: Citrus aurantium is the main treatment for stagnation of internal stagnation, plumpness (distension and discomfort), distension and pain, damp-heat diarrhea (diarrhea caused by feeling damp-heat evil), thoracic paralysis (stuffy pain in the chest), phlegm obstruction of Qi stagnation; Citrus aurantium is the main treatment for plumpness of the chest and diaphragm, coarseness of the ribs and distension of the pain, accumulation of food (food is poorly digested and stagnant in the stomach) does not dissolve, epigastric (abdominal) distension and fullness, phlegm (the formation of pathological products of the impaired metabolism of water and liquid), internal stagnation, and so on. 1. Citrus aurantium: for the Rutaceae plant sour orange and its cultivated varieties or sweet orange dried young fruit. It is bitter, pungent and sour in flavor, slightly cold in nature, and belongs to the spleen and stomach meridians. Its effects are to break down Qi and eliminate stagnation, dissolve phlegm and remove lumps. It can be used for treating stagnation and internal stagnation, plumpness and distension, damp-heat diarrhea, chest paralysis, phlegm obstruction, and prolapse of internal organs. It should be used with caution for those with weak spleen and stomach, and pregnant women. Compared with Hovenia dulcis, Hovenia ciliata has a stronger effect. 2. Citrus aurantium: for the rue family plant lime and its cultivated varieties of nearly mature fruit. It is bitter, pungent, sour, slightly cold in nature, and belongs to the spleen and stomach meridians. Its effects are to regulate qi and broaden the middle (regulating the qi of the spleen and stomach), move stagnation and eliminate flatulence. It is used for treating chest and diaphragm lumps and fullness, coercive and rib distension and pain, food stagnation, distension and fullness in the stomach and abdomen, internal accumulation of phlegm and drink, and prolapse of internal organs. The adverse effects of this drug are not clear, pregnant women should be cautious. Compared with Citrus aurantium, Citrus aurantium has a slower action. Although Hovenia dulcis and Hovenia dulcis originate from the same plant and have the same properties, the efficacy of the two is still different due to the different time of harvesting, and attention should be paid to the clinical use of the drug. Chinese medicine should be used under the guidance of a professional Chinese medicine practitioner, and should not be used blindly on its own to avoid adverse reactions.