Ginger, which is a medicinal substance, does not have a good time to eat. As a food, the time of consumption is not clearly defined, according to preferences and habits, choose the time of consumption; as a drug, it is recommended to take when there are indications, as prescribed by the doctor. Ginger is pungent in flavor and slightly warm in nature. It belongs to the lung, spleen and stomach meridians. It has the effects of relieving surface cold (removing cold from the muscle surface), warming and stopping vomiting (treating vomiting caused by stomach cold by warming the spleen and stomach), resolving phlegm and relieving cough, and detoxifying fish and crab. It is used in treating wind-cold, cold stomach and vomiting, coughing with cold phlegm, and fish and crab poisoning. Improper use of ginger is likely to help fire and hurt yin, and is contraindicated for those with yin deficiency and internal heat and those with excessive heat. Other patients, also need to be directed by a doctor before use.