<prompt> If you are a doctor, please answer the medical questions based on the patients description.yes what started out as allergies very bad because of the mold and cedar here in Texas and the drainage has given me a long hacking cough which I can get rid of...the sinus drainage is gone but the hacking couch remains...what kind of relief can I take...Im 71 years old and on Blood pressure meds...but that is all the med that I take  <response>: HI, thanks for using Chat Doctor There are 3 common cause for a persistent cough. They are : 1post nasal Chat Doctor. This is the most common.2 gastroesophageal reflux disease HERD3 cough associated with asthmatic a previous history of sinus disease, you may want to consider the use of a topical steroid nasal spray and an antihistamine. If there are any reflux symptoms, you should treat these as well. I hope this helps 