I think I need to quit smoking...

Last weekend I was visiting some friends in the Bay and long story short 3-5 of us smoked an ounce in 3 days. Since then I've had a pretty nasty cough, spitting up phlegm like nobodies business. I've been a pretty heavy smoker for 3 years or so now and never really had this issue but I don't think I can keep smoking and expect this to go away.

Anyone have a similar experience, and how did you deal with it?

edit: the vast majority of this was smoked in blunts and spliffs, with maybe 5-7 grams in pure joints. I quit cigs a few years back so tobacco definitely doesn't vibe with me anymore