Ginger treats runny nose and nasal congestion caused by wind-cold colds and has no curative effect on runny nose and nasal congestion caused by other colds. It should be used in accordance with medical advice. Ginger is pungent and slightly warm in nature, belonging to the lung, spleen and stomach meridians, and has the effects of relieving surface cold (removing cold from the surface of the muscle), resolving phlegm and relieving cough, warming and stopping vomiting (treating vomiting caused by stomach cold by warming the spleen and stomach), and relieving the toxicity of fishes and crabs. It is used to treat wind-cold cold, stomach-cold vomiting, fish and crab poisoning, cold phlegm and cough. Therefore ginger can be used to treat nasal congestion and runny nose caused by wind-cold flu. Ginger is not recommended for people with heatiness and internal heat deficiency, and the adverse effects of ginger are not clear. However, in addition to wind-cold cold, there are also wind-heat cold, summer-damp cold, yin deficiency cold, qi deficiency cold, etc. Ginger is good for other types of cold. Ginger for other types of colds can not reach the therapeutic effect, colds should be under the guidance of a doctor to identify the evidence of medication, not blindly self-medication, so as not to delay the condition.