I’ve never smoked so i really can’t relate to the addictive side of it, however would really recommend you do everything you can to follow your surgeons advice. Have you tried nicotine replacements? Is there anything else you can do when you feel like you need a cigarette? If it’s triggered by stress for example, what about doing things to manage your stress like taking a walk to offloading to a friend?
I’m not sure when wounds are fully sealed and I imagine it varies by person. Mine were fully closed over by 1 week and I was told by the nurse I can remove my dressings. I saw my surgeon today (week 2) and he said give it another week for them to become really ‘robust’ before putting lotion or scar treatment on them.
I doubt 1 cigarette will make a huge difference however the fact that by 1 week a non smokers are fully healed, I guess it shows how overall it does affect recovery.