Upper respiratory tract infections are also known as colds and the anatomy of the upper respiratory tract includes the throat, nasal passages and sinuses. The main reason is that the organism is invaded by pathogens due to the body’s immunity to cold, rain, and various reasons. These pathogens include viruses, bacteria, mycoplasma, chlamydia, rickettsiae, etc., and the mucosa of the upper respiratory tract appears to be congested, edematous, and a large amount of inflammatory material exudes inflammatory changes. These inflammatory secretions contain a large number of live and dead pathogens, detached tissue fragments and a large number of inflammatory metabolites. The most common pathogens of the common cold are viruses, accounting for more than 90% of cases, and ordinary viral infections do not require special treatment. Appropriate bed rest, drink plenty of warm water, pay attention to warmth, usually can be within a week or less of self-healing. For mild mycoplasma and chlamydia infections, most patients do not need special treatment, usually within two weeks can be self-cured. For influenza and other pathogenic infections caused by more serious colds, it is necessary to carry out anti-pathogen treatment, such as purulent bacterial infections, you can choose penicillin, amoxicillin, piperacillin, cefoperazone, clindamycin, levofloxacin and other anti-inflammatory treatment. Most upper respiratory tract infections are self-healing and do not require special treatment. Therefore, it is more important to take proper bed rest, avoid getting cold and pay attention to keep warm. Usually do not go to the crowded environment with poor air quality, ensure sufficient and good sleep, and restore physical strength. Enhance their physical fitness, you can appropriate exercise fitness, such as jogging, swimming, tai chi, yoga, mountain climbing, etc., to enhance their cardiopulmonary function, improve immunity. These measures can prevent the frequency of cold attack. Even if you are inadvertently infected with cold pathogens, you will be able to get better quickly. For people who are weak and prone to colds, they can get the flu vaccine every year after their cold symptoms have completely disappeared and their colds have gotten better completely, which is also effective in preventing influenza and severe colds.