Ginger is not usually applied alone to treat nasal congestion, but can relieve the symptoms of nasal congestion in wind-cold colds. Ginger is the fresh rhizome of ginger, family Zingiberaceae. It is pungent in flavor, slightly warm in nature, and belongs to the lung, spleen and stomach meridians. Its effects are to relieve cold (removing the cold from the surface of the muscles), warming and stopping vomiting (warming the spleen and stomach to treat vomiting caused by cold stomach), resolving phlegm and relieving cough, and relieving the toxicity of fishes and crabs. Ginger can be used to treat cold and flu, cold stomach and vomiting, cold phlegm and cough, fish and crab poisoning. Ginger can sweat away the evils on the surface of the body and dispel wind and cold, but the effect is weak, so it is often used in the treatment of wind-cold cold and mild symptoms, can be decocted alone or with brown sugar, white onion and other decoctions. Ginger can be combined with galangal, cardamom and other herbs when treating cold stomach and vomiting. Ginger can not be used to treat nasal congestion, but wind-cold cold can sometimes be accompanied by nasal congestion and other symptoms, then ginger can be used with other herbs for symptomatic treatment. The adverse effects and contraindications of ginger are still unclear, need to be taken under the guidance of a doctor to identify the evidence, not blindly used for the treatment of disease, so as not to delay the condition.