Fear of heat is not afraid of cold is a physical factor, Chinese medicine is common in the yin deficiency fire (deficiency of Yin essence in the body, the emergence of deficiency fire hyperactivity) and the evil heat and steam two types of evidence. 1. Yin deficiency and exuberant fire: due to the deficiency of yin and fluid, caused by hyperactive fire, with the heart, lungs, liver and kidney disease. Its common symptoms include dry mouth, insomnia, palpitations (rapid heartbeat, often accompanied by panic), forgetfulness, five distracted heat (two hearts and two feet of the heart of heat, and consciously heart and chest heat), zygomatic red (cheeks and zygomatic bone color red) hot flashes (a burst of heat) night sweats (after going to sleep sweating abnormally, waking up sweating stops), urination yellow, stools, dry and knotty, and so on. Zhi Bai Di Huang Wan, Da Zhen Yin Wan, Huang Lian A Gao Tang, etc. can be used to nourish yin and reduce fire (nourish yin essence and reduce fire). 2. Evil heat and steam: is caused by liver fire or dampness heat and steam (dampness and heat evil vaporization of the internal organs), is a real heat symptoms, common in young and middle-aged people. Its common symptoms are face red baking heat, spontaneous sweating (involuntary sweating during the day, a little movement sweating aggravated), irritability, bitter mouth, short red urine (small amount of urine, dark yellow color), constipation, and so on. Use Gentian Diarrhea and Liver Tang to clear liver and drain heat, resolve dampness and harmonize the camp. Eat less spicy and thick flavors and more fresh vegetables and fruits. There may be other reasons for fear of heat and fear of cold. If the above symptoms are present or accompanied by other symptoms, it is recommended to consult a doctor first and use medication under the doctor’s guidance.