Most colds are caused by a variety of viruses of the respiratory tract, including rhinovirus, adenovirus, respiratory syncytial virus and many others. Cold viruses can be identified early by nasal swabs, throat swabs and blood biochemical tests for targeted antiviral treatment. Cold can also be combined with bacterial infection if it is more than 3 days old, resulting in a mixed infection causing a cold, when the effect of antiviral drugs alone is not ideal and appropriate antibiotics are needed to treat the cold. Chinese medicine believes that most colds are caused by wind evil, which easily traps wind-cold and wind-heat and invades the lungs, causing cold symptoms such as nasal congestion and runny nose. The effect of TCM in treating cold is unique and better than western medicine, but TCM needs to identify whether the cold belongs to wind-cold, or wind-heat, and give the identification and treatment of promoting the lung, relieving the symptoms of the lung and clearing the lung respectively, which can soon relieve the symptoms of external sensation caused by cold.