Patchouli Zhengqi Water cannot be used to prevent heat stroke. The main ingredients of Huo Xiang Zheng Qi Shui are Cang Zhu, Chen Pi, Poria, Angelica dahurica, Dahua Pi, and Guang Huo Xiang oil, etc. It has the effects of relieving surface dampness (relieving the evils of the external senses and getting rid of dampness in the body), regulating qi and neutralizing the middle (regulating the qi of the spleen and stomach to make the functions of the spleen and stomach smooth). This product is mostly used for the treatment of colds and flu caused by external wind-cold, internal dampness stagnation (stagnation of dampness in the body caused by too cold diet, etc.), or summer summer dampness (the human body is susceptible to the invasion of summer heat and dampness in summer). There is no indication for the prevention of heatstroke, so Haoxiang Zhengqi Shui is not intended for the prevention of heatstroke. This product may cause nausea, vomiting, rash, itching, dizziness, flushing, palpitations and so on. It should not be used with cephalosporins, it is forbidden for those who are allergic to this product and the ingredients contained in it, and it is forbidden for those who are allergic to alcohol. The drug should be taken under the guidance of a professional physician, do not use it without authorization to avoid adverse consequences.