I'm also taking Shiseido pills. I went to Tongrentang yesterday and bought a pill for regulating the spleen and stomach. Shiseido pills do not need to be symptomatic. There are many posts in Baidu that have explanations: You can pay attention to teacher Luo Dazhong's post, and nourishing yin is a theory of Chinese medicine. . . . Yin deficiency refers to the physical state of yin deficiency and internal heat due to the decrease of body fluid and essence blood. Congenital deficiency, or long-term illness, blood loss, overwork and yin injury can all lead to yin deficiency. If family members are thin, parents are weak during pregnancy, or become orphans after birth, it may lead to yin deficiency. Yin qi in the human body can restrict yang qi, while yin deficiency can't control yang qi, so yang qi will be relatively excited and heat will appear. Deficiency of yin due to vegetarian body or consumption of yin due to long-term illness may cause symptoms such as fever of hands and feet, redness of face, vexation of five senses, night sweats, dry stool, preference for cold drinks, dry eyes, red tongue and rapid pulse. Nutrition principle Kidney yin is the foundation of Yin Qi, so it is advisable to eat more foods that nourish kidney yin, nourish yin and suppress yang. This kind of food is sweet in taste and cold in nature, and has the effect of nourishing the yin and essence of the human body.