Boiled water with ginger, scallion and white onion can generally be used to assist in the treatment of wind-cold type colds. Ginger is a kind of traditional Chinese medicine, its flavor is pungent, its nature is slightly warm, it has the effect of detoxifying the surface and dispersing the cold (removing the evil of cold from the surface of the body), warming the stomach and stopping the vomiting (treating the vomiting caused by the cold of the stomach by warming the spleen and the stomach), resolving the phlegm and stopping the cough and so on, and it can be used to treat the wind-cold cold, the cold stomach and vomiting, cold phlegm and cough, and so on. Scallion white is also a kind of traditional Chinese medicine, its pungent, warm nature, with sweating to relieve the surface of the body by sweating the way to lift the body surface of the evil qi), dispersal of cold through the Yang effect, can be used to treat wind-cold surface evidence, Yin Shengge Yang evidence, and so on. Ginger and scallion white boiled together in water on the wind-cold external attack type of cold has a certain effect on the relief of symptoms, but its role is limited, usually with other Chinese medicine decoction and use, the effect is better. To treat a cold, you first need to identify whether it is a wind-cold cold or a wind-heat cold. Patients with wind-cold colds usually have a fear of cold, runny nose, and a slight fever, while patients with wind-heat colds usually have a heavier fever, sore throat, and runny nose, among other symptoms. It is recommended that patients seek medical attention in time, by the doctor to identify the symptoms, and then choose the appropriate drugs for standardized treatment.