What should the elderly eat to prevent frostbite?

　　Once frostbite occurs in the cold season, it is difficult to cure. To prevent frostbite, in addition to keeping warm, you can use angelica, ginger and mutton soup to nourish and activate blood, warm yang and dispel cold, promote blood circulation throughout the body, and prevent frostbite in exposed parts.

　　Angelica, ginger, and mutton soup comes from "Treatise on Febrile and Miscellaneous Diseases" written by Zhang Shenjing in the late Eastern Han Dynasty. It consists of angelica, ginger, and mutton. It is originally designed for blood deficiency and cold hernia. In the prescription, Angelica sinensis nourishes and activates blood, ginger warms yang and dispels cold, mutton nourishes deficiency and generates blood. The whole formula works together to nourish and activate blood, warm yang and dispel cold. As in "Suwen?" The Theory of Yin and Yang Yingxiang says: "If the form is insufficient, warm it with Qi ； Those who are deficient in essence should make up for it with flavor. ”

　　Specific method: 15 grams of angelica root, 20 grams of ginger, 500 grams of mutton, boil in water until the mutton is thoroughly cooked, remove the medicinal residue, eat the meat and drink the soup. Take one dose every 1 to 2 days, with 10 doses as a course of treatment. This prescription is suitable for patients with a history of chilblains and can prevent chilblains.