White onion and ginger belong to the same source of medicine and food. Soaking feet in water with scallion and ginger can relieve frostbite, promote blood circulation in the feet, and help relieve fatigue so as to improve sleep. However, the effect of onion white, ginger boiled water foot soak is limited, it is recommended under the guidance of the doctor decoction to take or external wash, and so on. Scallion white, with sweating and relief of the surface, dispersing cold and Yang effect. The main treatment of wind-cold cold, Yin cold abdominal pain, diarrhea, dysentery and so on. Caution should be taken if the surface is weak and sweaty. Ginger has the effects of relieving cold from the surface of the body, warming the spleen and stopping vomiting (treating vomiting caused by stomach cold by warming the spleen and stomach). It is used for treating wind-cold cold, stomach-cold vomiting, lung-cold cough, and can also detoxify fish and crab. It is not to be taken by those with heatiness and internal heat of Yin deficiency. Note that, onion white, ginger boiled water soak feet after any discomfort is recommended to stop in time, timely medical attention.