Probably not helpful, but I'm having the opposite reaction. Been smoking over a pack a day for 25 years and every time I've tried to quit, my coughing has always gotten worse. This is the first time I haven't gotten worse. I have noticed that it took a while for my throat to get used to the vape versus the smoke, could that be it? Another thing I've noticed, entirely possible it's just me, but sometimes when I vape, if I'm drinking certain liquids (RockStar, coffee), it tends to irritate my throat and make me more prone to coughing. Like I said, could just be me, but thought I'd throw it out there.