Ying-wei disharmony refers to the loss of relative balance between Ying-wei and the two, and the emergence of a single side of the bias or bias decline, in essence, Ying-wei in the pathological state of the phenomenon of “strength and weakness”. Ying and Wei are not and there are two kinds of cases: one is Wei weak Ying strong, refers to the solid protection in the surface of the body of the weakening of the yang, lost the ability to resist the external evil and solid protection of the surface of the body, and then the sweat overflow on their own, that is, Chinese medicine clinically referred to as self-sweating phenomenon. The other is Wei strong camp weak, Wei qi is too strong after the accumulation in the body surface, forcing the body of the camp Yin according to sweat, the symptoms are manifested as fever and sweat, or not fever and no sweat. The treatment of Ying-Wei disharmony is to use Gui Zhi Tang to support the positive and dispel the evil (to support the body’s positive qi and get rid of the body’s evil qi), and to harmonize the Ying-Wei (to make the body’s internal and external qi smooth, each in its own way), it should be noted that when the fever is self-sweating (involuntary sweating during the daytime, sweating worsened with a slight movement), the medicine should be taken before the fever; no fever and self-sweating, there is no special time to take medication, the specific can be consulted with a professional physician’s opinion.