I have had a cough and clogged sinuses for almost 2 weeks now. I ended up taking!

I have had a cough and clogged sinuses for almost 2 weeks now. I ended up taking an entire bottle of cough med

I don't know what is wrong. At first I just had a cough and I ended up taking an entire bottle of cough supressant over the course of a week because my cough was so bad. Even after this not only had the cough barely been reduced, but I had also developed a stuffy nose. So then I began taking pills for sinuses. I got the pills from a dollar store, but I fail to see how this should make them any less effective if the correct dosage is taken. The instructions say to take 2 pills as often as needed/desired, and I have been doing so for almost a week now, and yet my sinuses are still clogged. WTF??? How can my nose STILL be clogged even after 2 weeks of taking medicine??And what is causing it to be clogged? Because I even shined a flashlight up my nose to see if it looked clogged, and it did not look clogged at all. So I can't figure out what is causing it to be clogged. What is it?

Stop taking that cough medicine crap its just a waste of money. Go to your doctor you probably have a sinus infection.