Yiwei Decoction, the name of the traditional Chinese medicine prescription. It is a medicine for treating dryness and has the effect of nourishing yin and benefiting the stomach. It mainly treats Yangming febrile disease and stomach-yin injury syndrome. Loss of appetite, dry mouth and throat, red tongue with little coating, and thready and rapid pulse. It is often used clinically to treat chronic gastritis, diabetes, anorexia in children and other people with gastric yin deficiency.