According to the instructions, Pouli Xiang Zheng Qi Oral Liquid can be used for colds and flu caused by external wind-cold and internal dampness stagnation (stagnation of dampness in the body caused by too cold diet, etc.), but it does not have the effect of reducing fever. Patchouli Zhengqi Oral Liquid is composed of patchouli oil, perilla leaf oil, Angelica dahurica, and Houpao. It has the efficacy of relieving surface and dampness, regulating qi and harmonizing the middle. It is used for cold and flu caused by external wind-cold, internal dampness or summer dampness (the human body is susceptible to summer heat and dampness in summer), with symptoms such as headache and heaviness, chest and diaphragm plagued, epigastric distension, vomiting and diarrhea; gastrointestinal cold and flu with the above symptoms. It should be noted that, when taking this medicine, avoid smoking, alcohol, spicy, cold and greasy food, and eat a light diet; it is not advisable to take tonic Chinese medicine at the same time during the period of taking the medicine; people with severe vomiting and diarrhea should go to the hospital in a timely manner; this medicine contains ethanol (alcohol), after taking the medicine, you should not drive the machine, car, boat, engage in aerial work, mechanical work and operation of precision instruments. If you need to take this medicine, it should be carried out under the guidance of a doctor.