Dai Dai Hua has the effect of regulating qi, relaxing the chest and opening up the stomach, and can be used to treat food accumulation (food indigestion and stagnation in the stomach) that does not dissolve, chest and hypochondrium (chest and ribs) discomfort, nausea and vomiting. Patients need to follow the doctor’s instructions to use the drug. Dai Dai Hua is the dried flower buds of Dai Dai Hua in the family of Rutaceae, and is used for treating distension of the chest and epigastric region, nausea, and loss of appetite. Note that during the period of taking Dai Dai Hua can not diet, maintain dietary regularity; should not drink alcohol, eat spicy stimulating food; should not drink tea, so as not to affect the efficacy of the drug. Patients should consult a doctor in time after the discomfort, under the guidance of a professional physician to identify the rational use of medication, do not blindly use their own medication, so as not to delay the condition or produce side effects.