The sutra says: “Yang plus yin is called sweat”, that is, there is fire and yin before sweat can be used, “Qi has a surplus is fire”, is relative to yin. Yin is blood and water, and fire has a phase of fire, the phase of fire is fed by water, and the phase of fire is fed by blood. Blood is not enough to produce heart fire, also known as yin fire, ambush in the blood veins, night sleep Yang into the yin for very and sweating, known as night sweats, and phase fire by water deficiency or heart fire incited by burning gold refining water and yin blood double deficit, more movement is sweating, or accompanied by night sweats. The skin couples for the three jiaofu, normal people phase fire is strong and qi and blood sufficient, heart fire to bright, phase fire to position, the skin couples like the body’s air conditioning, through sweating to adjust the opening and closing, in order to regulate body temperature, excretion of metabolites, sweating is “open” too much, it is necessary to supplement the qi and blood, clear volatile fire and convergence, the general public will be timely treatment, and not sweating The danger cannot be underestimated, many diseases are caused by not sweating. The first reason for not sweating is because the body is deficient in both yin and yang to make sweat, the second is because the surface (sun, yangming) dry knot can not make sweat, the third is because the body is deficient plus dry knot and not sweat. The second situation is that people with cold (sun) and cool dry (yangming) constitution do not sweat (sun and yangming disease), even directly under the sun do not sweat, there must be dampness and heat within, all kinds of diseases. The remedy for this is sweating, dispersing “dampness and heat”. Such as ephedra soup, big green dragon soup, ephedra forsythia red bean soup. The third common clinical condition is the deficiency of both yin and yang plus the dryness of sun and yangming. The initial clinical symptoms of such patients are often not obvious because of the deficiency, and when they come to the clinic with obvious discomfort, they often suffer from loss of both qi and blood, yin and yang, and the elevation of qi is out of balance, resulting in coldness in the hands and feet, low blood pressure, dizziness, insomnia, tinnitus, etc. It is necessary to regulate yin and yang and disperse them at the same time, which is clinically difficult.