Chinese medicine believes that the spleen is the foundation of the day after tomorrow and the source of qi and blood biochemistry. When the spleen and stomach function is healthy, the qi and blood are vigorous, the complexion is rosy and the skin elasticity is good; On the other hand, the spleen loses health, qi and blood and body fluid are insufficient, and the face is not nourished, so people will be mentally exhausted, pale and yellow. We usually know that deficiency and cold of spleen and stomach and damp-heat of spleen and stomach are all caused by deficiency of qi and blood.