Colds can be categorized into common colds and influenza. Coughs from common colds are generally self-limiting and can clear up in 5-7 days. Coughs caused by influenza generally do not resolve spontaneously and require treatment with antiviral drugs to relieve symptoms. The common cold is an acute upper respiratory tract infection caused by rhinovirus, adenovirus, coronavirus, etc. It may present with symptoms such as nasal congestion, runny nose, sore throat, cough, etc., and in severe cases, fever. The disease is generally self-limiting and symptoms usually resolve within 5-7 days. If there are complications, the duration of illness may be prolonged. Influenza is caused by the influenza virus and is mainly characterized by systemic symptoms, which may include fever, generalized aches and pains, and weakness of the limbs, as well as cough, phlegm, nasal congestion and runny nose. Influenza is generally not self-curing, and needs to be actively treated with antiviral drugs such as oseltamivir at an early stage, and the time of recovery is related to the early and late use of the drugs and the individual’s physical condition. Cough can also be caused by other diseases, not necessarily related to the cold, if the symptoms do not improve or aggravate, it is recommended to consult a doctor in a timely manner, improve the examination, and standardized treatment under the guidance of the doctor.