Once upon a time you could buy effective cough and cold medicine. It was effective because it contained pseudoephedrine. But then the druggies found that it was really useful in making bathtub meth. Now, because of the druggies, the rest of us can't get effective products like Robitussin Maximum Strength Cough & Cold. I have found it to be totally effective for me for controlling my cough and improving my sinuses, but now I can't buy it. Now you can only buy weaker things that aren't as effective or not effective at all. And I really hate buying random stuff off the shelf hoping that one will work: most of them won't, and you'll be popping $5-10 per trial to see if it does anything for you.
GRRR! They kept other drugs on the market that contain pseudoephedrine and just moved them behind the counter and required a log, WHY NOT COUGH SYRUP! I had to leave a class an hour early yesterday because I couldn't get my cough to stop. Stupid druggies.