Backbeat, you won't believe how much different your face looks after you quit. Definitely less puffy/red (even after a month for me, but two to three months was even better).
I also indulge now in better face products and even something called photofacials which help with my rosacea. Although I drank a couple of times this summer, when I returned to work, many people commented on my refreshed look.
Good luck to you and be patient!