2, its function is mainly to treat some lung and stomach yin injuries, dryness and heat, cough, dry throat, thirst, internal heat and thirst. The taboo of Polygonatum odoratum in clinical application is that Yin qi is particularly abundant, such as phlegm-dampness and qi stagnation, spleen deficiency and loose stool. Polygonatum odoratum can treat some related diseases in clinic, especially diabetes. Because Polygonatum odoratum can inhibit the rise of blood sugar, but also has certain benefits for diabetes-related complications such as coronary heart disease, and can also increase immunity.