Dragon fruit belongs to a kind of fruit in the southern region, which contains more water and can be eaten during cold and flu. In addition, you can also eat more apples, bananas, pears, peaches, etc., which have a positive effect on the treatment of colds by replenishing water as well as vitamin C. You should also eat more fresh vegetables, such as cabbage, cabbage, spinach, etc. Pay attention to drinking more water. A cold may cause dehydration in the body, so it is important to hydrate promptly. Actively treat the cold with medication, such as Tongxuan Lixin Pill, Anti-viral Oral Liquid, Lianhua Qingfei Capsules and other medications. The treatment cycle of cold is 5-7 days. After recovering from cold, you must actively engage in physical exercise so as to enhance your physical fitness.