Patchouli Zhengqi Shui is mainly used for the treatment of colds and flu caused by summer injury and summer dampness (the human body is susceptible to the invasion of summer heat and dampness in summer), and other common clinical symptoms include vomiting and diarrhea, headache and heaviness, etc. It is usually not used for the treatment of sweating herpes. The main ingredients of Huo Xiang Zheng Qi Shui are Perilla frutescens leaf oil, licorice infusion, patchouli oil, Sheng Han Xia, Poria, Poria, Dahua Pi, Angelica dahurica, Chen Pi, Jiang Zhaopu, and Cang Zhu, which have the efficacy of regulating qi and zhong (regulating the qi of the spleen and stomach, so as to make the functions of the spleen and stomach smooth), relieving the epidemiology and resolving dampness (relieving the evils of the external senses, and dispelling the evils of the body’s dampness). It is mainly used to treat colds and flu caused by summer dampness or external wind-cold, internal dampness stagnation (the stagnation of dampness in the body caused by too cold diet, etc.), with clinical symptoms such as vomiting and diarrhea, chest and diaphragm constriction, epigastric distension and pain, and headache and weight loss. In addition, patients with gastrointestinal-type colds who have the above symptoms can also take this product for treatment, but this product is not usually used for the treatment of sweating herpes. Adverse reactions of this product include nausea, rash, flushing, dizziness, palpitations and other adverse reactions. It is forbidden for patients who are allergic to any component of this product, forbidden for patients who are allergic to alcohol, and cephalosporins, ketoconazole, tinidazole, and other medicines can not be taken during the period of medication. It is recommended that patients who are unwell go to the regular hospital in time, follow the doctor’s instructions on the evidence of medication, do not take patchouli to treat herpes sweat without authorization, so as not to delay the condition.