Chinese medicine analyzes the total cause of fever is exogenous six evils, visceral dysfunction, yin and yang imbalance caused by the general division into real and virtual evidence. 1. Real evidence: the real is mainly externally affected by wind, cold, wind and heat and other six evils, or because of gas, blood, dampness and other depressions, congestion and heat caused by fever, at this time, generally through the relief of the surface, depression, blood, or to remove the dampness with the heat to reduce fever. 2. Deficiency: the deficiency of qi, blood, yin and yang, or deficiency of yin and blood, yin does not control yang, water and fire do not help, yang energy and fever; or lack of qi (spleen and stomach qi weakness), yin and fire, yang qi and external float and fever. At this time, in addition to the yin deficiency fever can be used to clear the medicine to reduce the deficiency heat, the rest of the complementary method in order to achieve the fever, qi deficiency to supplement the qi, blood deficiency to supplement the deficiency, yang deficiency to supplement the yang. If fever occurs, it is necessary to determine the cause of the disease under the identification and analysis of a professional doctor, and then choose the correct method of treatment.