The effects of ginger water include dispersing cold and relieving symptoms, relieving cough and phlegm, stopping vomiting and warming the middle, and relieving fish and crab poison. Ginger is a fresh rhizome that is pungent and slightly warm in nature. It belongs to the Yangming Stomach Meridian, the Taiyin Spleen Meridian, and the Taiyin Lung Meridian of the hand. It is mainly used for dispersing cold and relieving symptoms, relieving cough and phlegm, warming the spleen and stomach to stop vomiting, and detoxifying fish and crab. 1. Dispersing cold and relieving surface cold is often used in colds and flu caused by wind-cold. It can be used for sweating and relieving surface cold, dispersing cold and dispelling wind, and can be used in mild cases of wind-cold, and can be used in conjunction with onion white, cinnamon stick and qiangwu to enhance the effect of sweating and relieving surface cold. 2. Cough and phlegm is often used in cold phlegm cough, because of its nature of slightly warm, but the taste of pungent, can be effective in dispersing cold and warming the lungs, cough and phlegm, for cold cough, no matter how little phlegm phlegm, have a certain degree of efficacy, and often with the Chen Pi, half-summers and other medicines with the combination. 3. Stopping vomiting and warming the middle is often used for vomiting with cold stomach. Ginger is warm and strong in dispersing cold and warming the stomach, lowering the rebelliousness and middle. Ginger is the holy medicine for vomiting, it can treat all kinds of vomiting, and it can also be used as raw material to enhance the efficacy of other medicines to stop vomiting. It can also be used as a raw material to enhance the antiemetic effect of other medicines. It is often used in combination with half-sia and bamboo rhizome. 4. In addition, ginger has a certain detoxification effect, often used to solve the toxicity of fish and crab, but also can effectively reduce the toxicity of tiannanxing, half-sia and other drugs. Although ginger is a kind of medicine and food, but the specific use of drugs is recommended under the guidance of a physician.