Da Yuan Drink is not generally used for the treatment of constipation, but is used for the treatment of plague or malaria in which the evil spirits are in the membrane origin. Da Yuan Drink is composed of betel nut, thick bark, grass nut, motherwort, peony, scutellariae and licorice, which has the efficacy of opening up and reaching the membranous origin (attacking and expelling the evils that lie between the membranous origins), expelling filth and resolving turbidity. This formula can be used in treating the symptoms of “Evil in the Membrane Plain”, which are mainly characterized by cold and strong fever (fever without sweating) with no fixed time of onset, chest tightness, vomiting, headache, irritability, number of pulses, deep red tongue, greasy tongue coating, or white coating as thick as accumulating powder. The original drink should be taken in accordance with the dosage, children, pregnant women, hypertensive patients should be taken under the guidance of a physician; serving two weeks or during the service of the drug symptoms did not improve significantly, or symptoms worsened, the drug should be immediately discontinued to the hospital; allergic to the product is prohibited, allergic to the person to be used with caution. The treatment of constipation when the differentiation between the real and the real, the real evidence to eliminate the main evil, respectively, to diarrhea heat, warmth, qi; false evidence to raise the positive first, according to the different yin and yang, qi and blood deficiencies, different evidence of the treatment. Therefore, if you feel sick, it is recommended to go to a regular hospital as soon as possible, to clarify the cause of the disease, under the guidance of the doctor for treatment, should not be self-diagnosis and treatment, so as not to delay the condition.