There are several ways to prevent the transmission of colds: 1. self-isolation, such as relatives who have colds, should isolate themselves to avoid passing on to others, because colds are sometimes spread through droplets, whether eating or sleeping alone, to avoid contact with family members. 2. diligent indoor ventilation and simple disinfection of the room, the purpose of doing so is also to prevent the transmission of colds to each other. 3. 3, for people who do not have a cold should carry out related prevention, such as physical exercise to enhance physical fitness, improve the body’s resistance, you can also take oral prevention of cold Chinese medicine, such as Banlangen granules. Therefore, through the above analysis, the prevention of mutual transmission of colds should be isolated, ventilation, diligent hand washing, attention to hygiene and taking preventive herbal medicines, which can then prevent the transmission of colds.