Ginger water generally refers to ginger water, ginger belongs to the same source of medicine and food. Ginger can be used by decocting 3~9g of ginger for about ten minutes, but the efficacy of single Chinese medicine is limited, clinically it needs to be used with other Chinese medicines after identification by traditional Chinese medicine practitioners. Ginger has the efficacy of relieving surface cold (removing cold from the surface of the muscles), warming the spleen and stomach to stop vomiting (treating vomiting caused by stomach cold by warming the spleen and stomach), warming the lungs to stop cough (stopping cough by warming the lungs), and detoxifying the toxin. It can be used to treat wind-cold cold, stomach-cold vomiting, lung-cold cough, etc. It can also detoxify fish and crab. This product helps fire and harms yin, so it is not recommended to be taken by people with heatiness or yin deficiency and internal heat. To treat colds and flu, it is recommended to ask your doctor and choose the right medication under his/her guidance.