Wake up in the morning coughing phlegm, can not be excluded is a respiratory infection, it is recommended to go to the hospital to let the doctor to listen to the diagnosis, if necessary, take a chest X-ray whether there is bronchitis, or bronchopneumonia; routine blood test, to see whether it is a viral infection, or bacterial infection. If it is a viral infection, there is no specific antiviral drug, mainly symptomatic treatment, you can take oral cough medication to resolve phlegm, such as aminoglutethimide oral solution, with nebulized inhalation treatment. If it is a bacterial infection, it needs to be treated with antibiotics, such as penicillin, cephalosporin and macrolides. At the same time, you also need to pay attention to keep warm, avoid cold, choose light and easy to digest food, avoid cold and irritating food, do not go to places where people gather, so as to avoid cross-infection.