According to the instructions, the dosage of drinking patchouli zhengqi water is 5 ml~10 ml at a time, twice a day, but the specifics of the medication should follow the doctor’s prescription according to the condition. Patchouli Zhengqi Shui has the effect of relieving the surface and resolving dampness (relieving the evil of external infection and getting rid of dampness in the body), regulating qi and harmonizing the middle (regulating the qi of the spleen and stomach, so as to make the function of the spleen and stomach smooth). Patchouli Zhenqi Shui, composed of patchouli oil, perilla leaf oil, dahurica dahurica, and Houpao. It is used for colds and flu caused by external wind-cold, internal dampness stagnation (stagnation of dampness in the body due to overly cold diet, etc.) or summer dampness, with headache and heaviness, chest and diaphragm constriction, distension and pain in the epigastrium (stomach and abdomen), vomiting and diarrhea; gastrointestinal colds and flu with the above symptoms. It should be noted that, when taking this medicine, avoid smoking, alcohol and spicy, cold, greasy food, diet should be light; should not take tonic Chinese medicine at the same time during the period of taking the medicine; vomiting and diarrhea should be timely to go to the hospital; this medicine contains ethanol (alcohol) 40% ~ 50%, after taking the medicine should not be driving a machine, car, boat, engaged in aerial work, mechanical work and operation of precision instruments. If there is a need to use this medicine, it should be applied under the guidance of traditional Chinese medicine practitioners, and should not be taken on its own to avoid causing adverse consequences.