Cough
"I would have gave this medicine a 10 if it wasn&#039;t for the dull headache (may not have been due to the drug I was battling a sinus infection anyway) after I took this medicine. Cough was gone within an hour. Make sure you drink a lot of water. Maybe that&#039;s why I got the headache too. Also, I noticed that I was very sensitive after taking this drug. I actually cried a little bit because of the sinus pressure. When usually I just suck it up with pain and never cry. Stopped wheezing. Make sure to take a warm shower too after taking this drug it will also help clear the mucus."