The main reason for catching a cold is that the body is not in good health and the resistance is weak. At this time, it is necessary to pay attention to diet and rest, also need to strengthen nutrition, appropriate exercise, enhance the body’s resistance ability. You can also take oral medication to increase immunity, generally through traditional Chinese medicine to regulate, you can take oral tonic pill, can also use Yu Ping Feng San, appropriate use for a period of time can enhance resistance to prevent colds. You can take vitamins and trace elements orally, which can also play a supplementary therapeutic role. It is also necessary to pay attention to avoid blowing cold wind as much as possible, to increase or decrease clothes according to the change of climate, to prevent catching cold and flu, through conditioning and active exercise, after a period of time, the body will also have enhanced.