This is because it contains gingerol and volatile oil, such as gingerol, gingerol, gingerol, citral and so on. Therefore, when we eat ginger, we often feel fragrant and spicy; When taken orally, ginger can stimulate the oral cavity and stomach and promote the secretion of digestive gland fluid, so it has the effect of strengthening the stomach and promoting digestion; After eating ginger, it can accelerate the blood circulation in the body and make the whole body feel warm, so it can sweat and dispel cold. In addition, ginger can be sliced, mashed (ginger juice) or simmered (ginger stew) as medicine. Ginger has the effects of relieving exterior syndrome, dispelling cold, stopping vomiting, eliminating phlegm and detoxifying. However, patients with yin deficiency and fever should not use it.

Treatment of cold and cough with excessive phlegm and foam: 10 grams of ginger, six scallions, one radish, three bowls of water, first boil the radish, then add ginger and scallions, boil it into a bowl, and take it with residue.