I have a buddy who swears he has only breathed out of both his nostrils at the same time, like 8 times in his life. He has asthma and sinus issues, and back in the late 80s, the dumbo smoked on top of that. "I better hit my inhaler so I can have a cigarette." ... Idiot.
Fortunately, I have Sinuses 2.0 which means 98 days out of every 100 i get to breathe 100% unobstructed thru both nostrils. Smoking never bothered my sinuses, and frequently colds did nothing either, or at worst only clogged one side.
HAH! Yeah I never really had any sinus issues before I started smoking in 1993 heh. That combined with "other stuff" i was getting into at the time (hey I was 18!) literally wreaked havoc on them after that.. I remember the first time I took a 'break' from smoking for a couple weeks, I think I had been smoking almost a year, is when it ALL kicked in and ever since then, my nose has been plugged up constantly, my ears always felt like they were full of crap, and my chest just started coughing up crap all the time.. Over the years its gotten so bad that when I was still smoking, I literally have to spit like every other drag cause of the crap coming up in my throat.. That all started around 2006/2007. Everytime I would go visit my sister up in Portland I swear something about the change in the air coming back to the beach in Ventura would give me a gnarly sinus infection.. Came home after a christmas visit in 2006 and boom got hit so hard I was sick for like a week.. That was probably the first time I attempted to quit smoking, but didnt last very long cause of the hottie I started dating a couple weeks later the first time she said "Come on come have a cigarette with me".. Women, evil I tell ya..
The chest clearing is still going on after a month and a half of vaping, but at least its not all grey and nasty anymore haha.