There is no uniform conclusion on how long the symptoms of coughing will last with new crowns, there are individual differences, and some patients may need 1~2 weeks. Coughing symptoms may occur after infection of the new crown, mostly a process of repairing the airway, because after infection of the new crown, the virus in the respiratory tract, a large number of replication, resulting in the destruction of the mucous membrane cells of the respiratory tract, destroyed by the virus of these cells, have become the body’s garbage, to clean out, the respiratory tract will secrete some mucus, the formation of sputum, through coughing it out. Because everyone reacts differently to viruses, some people’s coughs may take three to five days to clear up, some people take longer, but most people may need 1 to 2 weeks. If the cough lasts for more than 2 weeks and the symptoms do not improve, and is accompanied by hemoptysis, dyspnea, chest tightness and other uncomfortable symptoms, it is recommended to seek medical attention.