When the weather is too hot, you can catch wind-heat type cold, wind-cold type cold and summer-damp type cold, such as wind-heat type cold and summer-damp type cold, because the body is too hot and the outside temperature is too high and the heat dissipation and heat production function is imbalanced, which causes heat and dampness to enter the body and cause a cold. When the weather is too hot, people also like to take cold and eat cold drinks, such as alternating hot and cold can also cause the heat-damp cold in the gastrointestinal tract, and the following symptoms may occur: fever, sweating, dry mouth, sore throat, runny nose, coughing phlegm, coughing pus phlegm or abdominal pain, diarrhea, nausea, vomiting, constipation or loose stool, mucus-pus-blood stool with urgency and heaviness, etc., which should be treated by relieving the symptoms of dampness or dispelling wind and heat. The treatment should be carried out with drugs to dispel dampness or dispel wind and heat.