As a common respiratory illness, the common cold serves as the prelude to pulmonary diseases. Referred to colloquially as "catching a cold". The common cold can occur at any time throughout the year, with a higher incidence during the winter and spring seasons or when there are sudden changes in weather. It can affect individuals of all ages. This course mainly focuses on the etiology and pathogenesis of the common cold, clinical diagnosis, differential diagnosis, pattern identification and treatment, as well as preventive measures and nursing care. Studying this course will enable you to build a comprehensive system for diagnosing and treating the common cold. It will greatly assist in guiding the clinical use of medications for treating the common cold, making it highly worthwhile for everyone to study and listen attentively.