<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a deep cough that raises clear mucous. I have been xrayed and know there is no pneumonia or bronchitis. I do not have a history of asthma. My doc prescribed a week of prednisone which I have just started. But I wonder if Benzonatate might be helpful for this?  <response>: Hi, Benzoate is a cough suppressant Chat Doctor. Prednisone is an oral corticosteroid. Prednisone is effective only if it is an allergic etiology related cough. Since you dont have asthma or bronchitis, I dont think your cough will improve with prednisone. Better to take Benzoate first as it is cough suppressant. It will definitely reduce your cough. Hope I have answered your query. Let me know if I can assist you further. 