Citrus aurantium leucocephala in water is useful for relieving stagnation and internal stagnation, plumpness (stomach fullness and discomfort) and distension, constipation and other symptoms. But the effect of brewing water to drink is limited, and is not recommended for the treatment of disease. Citrus aurantium, taste bitter, pungent, sour, sex slightly cold. Attributed to the spleen, stomach meridian. It has the efficacy of breaking qi and eliminating stagnation of qi and eliminating the accumulation of food, resolving phlegm and dispersing lumps. It is used in treating internal stagnation, plumpness, distension and pain, diarrhea (diarrhea) with a heavy weight after defecation (meaning that defecation is not smooth, with a heavy dropping feeling in the anus, and after defecation there is still a feeling of not having a clean discharge), inability to pass stool, and phlegm stagnation and Qi obstruction. Use with caution for pregnant women. Lycopodium, pungent, sweet, neutral. It belongs to lung, spleen and stomach meridians. It has the effect of eliminating food and bloating, lowering Qi and resolving phlegm. It is used for food stagnation, epigastric (stomach and abdomen) distension, constipation, stagnation and diarrhea, phlegm congestion and cough. Caution should be exercised if there is a deficiency of Qi. Before taking this medicine, it should be used under the guidance of a traditional Chinese medicine practitioner, and should not be purchased and used on its own to avoid delaying the condition.