Ginger tea has the effect of dispersing cold (removing cold from the surface of the muscle), warming and stopping vomiting (treating vomiting caused by stomach cold by warming the spleen and stomach), resolving phlegm and relieving cough, and relieving fish and crab poisoning, which can be used to relieve wind-cold cold, stomach cold and vomiting, cold phlegm and cough, and fish and crab poisoning. 1. Relieve cold: ginger tea for dispersal of wind-cold, can relieve the mild symptoms of colds, with the addition of brown sugar while hot to take, often get sweat and solution, can also be used as a preventive measure against colds. 2. Warm and stop vomiting: ginger tea can warm and stop vomiting, can relieve stomach cold vomiting and other discomforts. 3. Cough: Ginger tea can dissolve phlegm and relieve coughing and phlegm symptoms. 4. Detoxification crab poison: ginger can detoxify fish and crab poison, for eating crab, fish and shrimp poisoning caused by vomiting, diarrhea, if the symptoms are mild, drink tea with ginger has a certain relief effect. Ginger is hot, Yin deficiency and internal heat and hot evidence of avoidance, adverse reactions are not yet clear. However, the role of ginger tea is limited, the emergence of discomfort need to actively seek medical attention, under the guidance of a physician for reasonable treatment.