If cough symptoms occur, you can choose injections that can relieve the cough according to the cause. For example, if the sputum is more abundant and sticky, you can choose expectorants to promote the expulsion of sputum, such as amiloride injection and fenugreek injection. For a more intense dry cough and the patient has wheezing and shortness of breath, you can choose fenagan injection and, if necessary, a combination of glucocorticoids, such as methylprednisolone and prednisone injection. If there is airway bleeding with symptoms of wheezing and shortness of breath, you can choose to use vitamin K1, which can calm wheezing and also achieve the purpose of stopping bleeding.