text: You don't have the flu, since the flu rarely gives you a bad cough.\n\nIt sounds like you have an upper respiratory infection.  If the cough syrup you got OTC didn't work, you absolutely MUST go to the doctor.  Chances are what you have can only be cured by antibiotics.  You could even have pneumonia, which could put you in the hospital.\n\nDon't worry, if you tell the doctor the cough syrup didn't work, he'll surely give you something stronger.