I was a PAD smoker for 14 yrs. I coughed A LOT! I had bronchitis every 3-4 months and couldn't breath and would have to use a rescue inhaler during this time. I even had to use the inhaler on a daily basis towards the end. After quitting no cough. It was a miracle. I am glad I don't cough anymore. In the mornings when I first started vaping I would have to clear my throat but no real cough. Have to remember that when you quit your cilia wake up and start sweeping the junk up to your throat especially while you sleep. That way you swallow it and get rid of it probably without realizing it.