Ginger in water can have the effect of treating wind-cold exterior sensation, stomach cold vomiting, spleen and stomach cold, lung cold cough, as well as detoxification of fish and crab. Ginger is pungent in flavor, warm in nature and belongs to the lung, spleen and stomach meridians. It can warm the middle and disperse cold (dispel the cold by warming the spleen and stomach), relieve vomiting, detoxify and relieve cough; it is usually used for spleen and stomach cold, wind-cold cold, stomach-cold vomiting, lung-cold cough, and can also treat the poison of fish and crab. Ginger is contraindicated for people with heat and yin deficiency and internal heat; adverse reactions are not clear; the diet should be light during the medication; allergy to the drug is prohibited, allergic people should be cautious; pregnant women, children, and patients with frailty should be used under the guidance of a physician. The correct use of ginger for decoction or juice, if the bubble water to drink can not give full play to its therapeutic effect, if there is a need for medication, it is recommended that the use of traditional Chinese medicine under the guidance of a physician.