Colds can be treated without medication because most colds are caused by viral infections, are usually mild and short-lived, and in the absence of complications, can heal spontaneously in 1 week with a good prognosis. Therefore, no medication can be used if common cold symptoms occur. Unless the patient has clear symptoms of bacterial infection, such as elevated white blood cells, elevated neutrophil ratio, tonsils with pus moss, pus, and coughing up yellow sputum, antibiotics can be applied to treat the symptoms. In addition, antiviral drugs should not be abused because viruses mutate quickly, and blindly applying antiviral drugs without clarifying which kind of viral infection is involved will not give good results. Therefore, if the patient does not have fever and has normal immune function, there is no need to apply antiviral drugs after 2 days of the onset of the disease, only at the beginning will have some effect. During the period of cold and flu, we should pay attention to drink more water and rest, and can eat more vegetables and fruits rich in vitamin C. All these are conducive to improving the symptoms and shortening the course of the disease.