Sanbai Decoction can prevent colds and treat coughs. The specific ingredients are (white onions, white radish, cabbage, ginger, guan zhong, mint). Make the soup instead of water and take it. 2 white onions, the white part, half a catty of white radish, 1 tael of cabbage, 2 taels of ginger, 15 grams of guanzhong, fry for 30 minutes, then add 15 grams of mint, simmer for another 15 minutes, filter, and you can drink homemade Sanbai decoction can prevent colds, treat coughs, improve immunity, and also has a preventive effect on epidemic hemorrhagic fever in some places.