Whether a cough requires isolation cannot be generalized, but depends on the cause of the cough. If the cough is caused by an acute infectious disease, isolation is required, for example, avian influenza, SARS, and the new crown. If the cough is caused by one of these diseases, the patient needs to be isolated for treatment, and there are certain criteria for lifting the isolation. If it is a common cold with a cough, generally do not need isolation, but this also has a certain degree of contagious, so patients with a cold should wear a good mask, coughing do not to others. If it is acute tracheobronchitis, lung infections and other diseases or acute exacerbation of chronic obstructive pulmonary disease, bronchodilatation combined with infection of the patient, generally do not need isolation, but also pay attention to coughing, coughing sputum when not to other people, cover the mouth and nose, so as to avoid spraying out of the bacteria, viruses infected to other people.