Citrus aurantium and Citrus aurantium differ in terms of origin, flavor, efficacy and primary treatment. Source: Hovenia dulcis is the dried unripe fruit of Citrus aurantium and its cultivated varieties. Hedera japonica is the dried dry bark, root bark and branch bark of Hedera japonica or Hedera japonica concave leaf of Magnoliaceae. Characteristics and taste: Citrus aurantium is slightly cold with sour and bitter taste. Houpu is warm and bitter in flavor. Effects: Hovenia dulcis regulates qi and broadens the middle (regulating the qi of the spleen and stomach), and promotes stagnation and eliminates flatulence. Houpu dries dampness and eliminates phlegm, and reduces flatulence by allowing the qi to flow downward. Indications: Hovenia dulcis is mainly used to treat stagnant Qi in the chest and ribs, painful flatulence, food stagnation, phlegm and fluid retention, and prolapse of organs. Hau Pu is used to treat dampness stagnation in the middle of the body, epigastric congestion and vomiting and diarrhea, food accumulation and gas stagnation, abdominal distension and constipation, and phlegm-drinking wheezing and coughing. The adverse reactions or contraindications of Citrus aurantium and Hau Pu are not clear. It should be noted that if you feel unwell, it is recommended that you seek medical attention as soon as possible and do not self-medicate to avoid delaying the condition and affecting subsequent treatment.