If you have diarrhea after heatstroke, it may be due to a sudden drop in immunity, resulting in a dysbiosis of the intestinal flora, or it may be due to a dysfunction of the gastrointestinal tract after heatstroke. If you are suffering from diarrhea, you can apply bifidobacteria and other intestinal probiotics to regulate the dysbiosis of the intestinal flora. 2. Apply Chinese medicines, such as Huoxiang Zhengqi Pill, Rectify Intestine Pill, Huanzhen Zhenglu Pill, Baohe Pill, etc., which have the effect of clearing heat and removing dampness, and Huoxiang Zhengqi Pill has the effect of relieving the heat and relieving the symptoms. 3. If you have abdominal pain or vomiting, you can apply scopolamine or scopolamine to relieve spasm and pain, and apply gastrodia to stop vomiting. Pay attention to replenish or regulate the electrolytes in the body, and apply oral rehydration salts to replenish.