iam a smoker and had a bad head cold that turned to chest cold n remedie them at home with vicks , neocitran and whatnot, then couple weeks went by i started shortness of breathe, difficulty breathig thru nose n when i tried to smoke, it hurt inside left lung n ever since it hurts to breathe in that area. its really annoying as i can t get rest..shower steam really helped so was wondering cud it b allergies or jsut gotta hang in there whilst this chest cold thingy passes.