text: I've heard about 4 days.\n\nWhen I quit smoking several years ago... here's what I did.  I took a two liter bottle of water and went into a sauna.  I kept on drinking water.  When I started to sweat heavily, I would exit the sauna and take a quick shower... rinsing the sweat off of me.  \n\nI would then return to the sauna and repeat the procedure until I had drank all the water.\n\nI felt great!  That first day went fairly easily.  The next day was pure torture.  I think I sweated out all the nicotine that first day and had massive withdrawels on the second.  Still, my withdrawel lasted a much shorter time than other times I attempting quitting.\n\nGood luck!