The role of ginger: 1, sweating and relieving the symptoms, that is, the treatment of colds, mainly for cold caused by wind and cold. 2, warming the stomach, mainly for stomach cold or stomach cold caused by stomach pain. 3, ginger has antiemetic effect, can be used for stomach cold vomiting or motion sickness vomiting. 4, has a warm lung cough effect, can be used to treat cough caused by wind and cold. Now pharmacological research shows that ginger can promote blood circulation in the body, can also be used to relieve alcohol, can also use ginger to treat muscle pain in the back and shoulders caused by muscle cold.