The “Nei Jing” says: “Nourish Yang in spring and summer, nourish Yin in autumn and winter”, “If you don’t hide essence in winter, you will get warm in spring”, “If you get cold in winter, you will get warm in spring”, which means Autumn and winter should be in line with the natural yin qi, hibernation and astringent climate characteristics, to nourish the yin essence of drugs and reasonable rest and relaxation to hide the essence of yin, to prevent the yin deficiency fire, the next year in the spring suffer from warm disease; winter if the righteousness is not enough, can not be good to resist evil, once injured in the wind and cold, evil ambush in the body, until the spring will also develop into warm disease. In order to prevent the occurrence of influenza and other warm diseases, should be adjusted in winter to nourish Yin and solid essence, and the effective and easy way to hide essence and nourish Yin is to use the cream formula, a material cream formula, winter months to serve, spring, the essence of gas, deficiency of evil wind is not easy to feel, since there is no occurrence of influenza; plain form of weakness prone to colds, insomnia and fatigue, forgetfulness and diarrhea, shortness of breath and cough, false annoyance and thirst people, can also take advantage of the winter to nourish Yin good opportunity to use the cream formula It can benefit the qi and strengthen the spleen, nourish the yin and consolidate the essence, and submerge the yang and resolve the phlegm.