Fever is a body temperature above the normal range for some reason, axillary temperature of 37 degrees or more, oral temperature of 37.3 ℃ or more, rectal temperature of 37.6 ℃ or more, can be considered as fever, Western medicine believes that the cause is mostly infection or infectious and non-infectious diseases, such as bacteria, viruses, fungi, mycoplasma and other infections; sterile tissue damage; central fever, cancer fever, fever caused by metabolic reactions, produce abnormal heat dissipation, etc. . Fever is one of the most common clinical symptoms. But in the clinic can see many patients with nameless fever, in the hospital to do a variety of tests, blood routine, urine routine, thyroid hormone, a variety of viruses, immune examination, a variety of tuberculosis test, bone penetration, etc., the results are normal, and finally only give hormone therapy, nothing, long-term use, when is the head? Some patients have repeated fever and repeat the above tests again and again, each time costing quite a lot, and finally they have no choice but to give hormones. Chinese medicine has a profound understanding of fever since the beginning of the Yellow Emperor’s Classic of Internal Medicine, and believes that the cause of fever is external and internal injury. In the book “Evidence and Treatment of Fever? Fever” contains: “Jing said: Yin deficiency is internal heat, this end also, other than the sense of guest evil, there are labor force labor color, gas depression fire depression, injury food injury wine, holding blood stasis holding phlegm, sores and toxins, all can fever, should be familiar with the identification. External fever is mostly high fever, including wind-heat, wind-cold, summer-damp, damp-heat, lung-heat, stomach-heat, etc.; internal fever is mostly low fever, including liver-depression fever, blood-stasis fever, qi-deficiency fever, blood-deficiency fever, yin-deficiency fever, yang-deficiency fever, etc. The difference between external fever and internal fever is that although both of them have fever, external fever is more rapid in onset and shorter in duration, persistent, and mostly high in fever, and most of the fever is accompanied by vicious cold at the beginning, which is not reduced by clothing, and is often accompanied by headache and body pain, nasal congestion, runny nose, cough, and floating pulse. The onset of fever is slow and the duration of the disease is long, intermittent, mostly low-grade fever, or self-conscious fever, or five heartburn, less high fever, no cold, or although there is cold, but the clothing is removed, more dizziness, fatigue, spontaneous sweating, night sweats, weak pulse and other symptoms. Common subtypes of treatment 1, yin deficiency fever: this evidence is based on yin deficiency, deficiency fire as the standard, the treatment of the standard agent can only be used temporarily, should not be taken for a long time. When the fever decreases, the products for clearing heat and removing steam should be reduced, and the products for nourishing yin and cultivating the root should be gradually strengthened. 2, Yang deficiency fever: floating Yang ascending or outside the Yue should only lead the fire back to the yuan, do not repeat the cold fracture Yang Qi. 3, blood deficiency fever: according to the ancient theory of “visible blood cannot be self-generated, born of invisible qi”, the treatment of this evidence should not only supplement the deficient yin and blood, but also pay attention to benefit qi and strengthen the spleen, in order to fund the source of qi and blood biochemistry. 4, damp-heat fever: this evidence of damp-heat contained in the three jiao, loss of profit, the treatment should be clearing the Fang Hua, smooth the up and down, so that the damp turbidity is removed from the heat. It is inappropriate to use cold and conducive, not to spice up the emanation of sweat in order to remove the heat of the moment. 5, qi deficiency fever: the treatment of this evidence to supplement the qi to strengthen the spleen, sweet and warm to remove heat, supplement the qi to ascend Yang to Huang Qi is the main, Sheng Ma, Chai Hu dosage should be small, not too much to prevent dispersal injury. 6, blood stasis fever: this evidence is important to activate blood stasis, do not cast bitter cold or tonic. The “medical reading essays” said: “If you mistakenly think that the actual fire and use cold and clear, think that the Yin deficiency and use tonic blood stasis benefit solid.” 7, food stagnation fever: this evidence treatment to eliminate food stagnation is the main, eliminate food stagnation will be removed from the heat. 8, liver stagnation fever: the treatment of this evidence to dredge the liver to drain the heat, because the liver collects blood, the main drainage, qi stagnation is blood stagnation, depression and fire will hurt the yin and blood. Therefore, dredging the liver should not be too loose to prevent blood consumption and liver, dredging in addition to nourishing, diarrhea in the tonic, the party is appropriate. In conclusion, Chinese medicine has a set of distinctive theoretical understanding and therapeutic prescriptions for fever, and it has better curative effect on unnamed fever that cannot be diagnosed by various tests in Western medicine. In addition to emphasizing the diagnosis and treatment, it also emphasizes fever and health care. Drug treatment is accompanied by acupuncture, external treatment and food therapy. Patients should pay attention to rest, light diet, drink more juice and boiled water.