The cold cycle is usually about 1 week, and the exact duration is related to the cause and severity of the cold as well as your own constitution. Cold is a common acute upper respiratory tract infection, mainly manifested as fever, cough, nasal congestion, runny nose, headache and other symptoms, divided into common cold and influenza. The common cold is mostly self-limiting and has a short course, usually taking about 1 week from the appearance of symptoms to recovery, while the recovery time for influenza is relatively longer than that for the common cold. However, if the patient’s own resistance is weak, such as old age, weakness, more basic diseases, or patients with serious chronic lung diseases, the recovery time may be relatively longer, and the prognosis for serious cases is poor. During the period of cold, it is recommended to drink more water, eat a light diet, avoid spicy, stimulating and greasy food, keep warm and take more rest. If the symptoms are more serious, it is recommended to use medication under the guidance of a professional doctor, or go to the hospital infection department in time.