Ginger boiled in water has the effect of relieving cold (removing cold from the surface of the body), warming the stomach and stopping vomiting (treating vomiting caused by cold stomach by warming the spleen and stomach), resolving phlegm and relieving cough, and relieving the toxicity of fishes and crabs. 1. Dispersing cold from the surface: This product is pungent and warm, and can be used to relieve cold from the surface by sweating, but its effect is weak. For mild cases of wind-cold cold, it can be boiled in water or decocted with brown sugar and green onion, which has the effect of dispersing cold and dispersing cold from the surface. 2. Warming and stopping vomiting: ginger boiled water can warm the stomach, warming and stopping vomiting, for the spleen and stomach cold (spleen and stomach weakness and cold) and cold evil attack on the spleen and stomach caused by cold pain in the stomach and epigastric region, less food, vomiting and other symptoms, have a certain role in relieving. 3. Cough phlegm: ginger boiled water has a certain phlegm cough effect, lung cold cough patients can drink, for phlegm cough, cold (cold) headache and other symptoms can play a certain role in relieving. 4. Anti-fish and crab poison: ginger boiled water to drink, can solve the toxicity of fish and crab, so eat seafood, you can drink ginger water. Ginger boiled water role is limited, can not replace the drug treatment of disease, and for hot body and allergy patients with caution. If you have any discomfort, we suggest you to consult the Chinese medicine department of regular hospitals in time, and use medication under the guidance of Chinese medicine practitioners, do not take medication on your own.