I too was given Lisinopril for high BP. The cough started within a few days, along with the post-nasal drip. I never related the symptoms to the drug until I started searching on the internet. By this time 3 months had passed and I have bought and taken every cough / cold remedy on the market. Tried using a Neti pot twice daily, cough drops, syrups to no avail. I haven't had a day without coughing every couple of hours since August and I cough to the point of vomiting. I can't sleep at night and am driving my partner nuts. Thank GOD I finally realized what was causing this cough and got my Dr. to switch my meds to Atenolol (no cough side effect). Unfortunately, I have been off Lisinopril now for 15 days and am still coughing. I've seen very little improvement. I have read in severe cases, the effects sometimes linger for MONTHS! *UGH* I think I fall into that category. I am trying to keep my sense of humor about it all and hope that I can stop coughing my Christmas!