If it were just a cold, go for it. I've been having sinus problems the last week, coughing, sneezing, stuffy head.. and I've smoked. It doesn't exactly help my problems in a physical sense, but it does make me feel better of course. :stoned:

As for bronchitis, I don't think I'd smoke dude. Wait until it goes away.. your lungs are already messed up, smoking might just make it worse right now. And if you wait until your lungs are better, the smoke will be that much better.