How do you make a cold p by quickly?

I have a VERY bad cold and I really want it to p through my system as quick as possible. I have had it for about 5 days now and the last 3 days have been miserable. My symptoms are sore throat, croup cough, and a SUPER STUFFY NOSE. I am so congested that it wont even blow out when I try. I am taking vitamin C pills everyday as well as drinking a lot. I am also on some allergy meds my doctor has perscribed. I have also taken some AirBourn (or however you spell it). I also took some cough medicine. My congestion is my main concern. I also used a neti pot ( a href="http://www.youtube.com/watch?v=j8sDIbRAXlg" rel="nofollow"http://www.youtube.com/watch?v=j8sDIbRAX…/a ) and it works but only uuntilmy nose gets stuffed up again in about 15 minutes. And you are only ssupposedto use it 3 times a day. Can anyone help me?