Patients suffering from heatstroke can take Patchouli Zhengqi Water orally to relieve symptoms according to the instructions. 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 Zhengqi Shui, composed of patchouli oil, perilla leaf oil and Angelica dahurica. 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 (the body is easily invaded by summer heat and dampness in summer), with symptoms such as headache, heaviness, chest and diaphragm constriction, distension of the epigastric region (stomach and abdomen), vomiting and diarrhea, etc. It is recommended to avoid smoking and alcohol, and to avoid the use of tobacco and alcohol. Attention should be paid to avoid smoking, alcohol and spicy, cold, greasy food, diet should be light; should not be taken during the period of taking the drug at the same time take tonic Chinese medicine; vomiting and diarrhea should be serious in time to go to the hospital; taking the drug for 3 days without symptomatic relief, should go to the hospital for consultation. If you need to take this medicine, you should do so under the guidance of a doctor.