Exacerbation of cough after influenza may be due to the development of airway hyperresponsiveness, combined bacterial infections, pharyngitis, and so on. Choose general treatment or drug treatment according to the cause. 1. Airway hyperresponsiveness: After influenza, the mucous membrane of the respiratory tract is damaged, and airway hyperresponsiveness may occur, which is manifested as coughing, wheezing, and even dyspnea. Anti-allergic drugs, such as loratadine, can be used; if the cough is severe, dextromethorphan can be used to suppress the cough. 2. Combined bacterial, mycoplasma and other infections: low resistance after influenza, easy to combine with respiratory bacterial infections, manifested as high fever, fatigue, cough and so on. You can use antibiotic treatment, such as levofloxacin and other treatments; if there is mycoplasma infection, you can use azithromycin treatment. 3. Laryngitis: after influenza, it is easy to cause edema of the mucous membrane of the throat, which may cause inflammation of the throat. Should pay attention to rest, drink more hot water; if the symptoms are serious, you can use glucocorticoids, such as dexamethasone nebulizer inhalation to control inflammation. If the cough worsens after influenza, there may be other reasons, you should go to the hospital in time, under the guidance of the doctor in time to check the chest CT examination, except for lung disease. The above medications should be used under the supervision of a physician.