You can take meals and medicines that enhance resistance properly when you have a cold all the time. You can eat more vegetables and fruits with brighter colors, such as you can choose bananas, grapes, dragon fruit, passion fruit, cherries, apples, etc. Next, you can also choose yellow cauliflower, shiitake mushrooms, enoki mushrooms, white radish, carrot, broccoli, kale, milk, soy milk, eggs, beef, duck and fish. In addition, you can also consume more nut foods such as walnuts, peanuts, sesame seeds, pistachios, pine nuts, macadamia nuts, etc. In addition, you can also take appropriate immunity-enhancing Chinese medicines, such as Jin Shui Bao capsules, Zhong Zhong Yi Qi granules, Yu Ping Feng granules and Western ginseng tablets. These meals and medicines can enhance the immunity of the body, improve the ability to resist pathogens and reduce the frequency of colds.