The cold will cause the gastrointestinal tract to lose its digestive function, so some too greasy and undigested food should not be eaten as much as possible, like fried food and nutty food. In addition, you should not eat cold fruits, like watermelon, melon pear, mulberry, mangosteen, etc. You should not eat hot fruits like jujube, hawthorn, pomegranate, lychee, etc. You should also not smoke or drink alcohol. You should eat more soft and easily digestible food, drink more water to replenish water and vitamins, and actively use anti-cold medicines, such as cold and fever granules, Shuang Huang Lian oral liquid, and apply symptomatic cough and expectorant as well as anti-fever and antipyretic drugs to actively treat.