Fasting and Smoking Smell?

I'm a Smoker, I realize there is a certain smell that comes from your Hair and skin.

I have a Wedding to go to in 5 days and need to know if I fast and not smoke till the time ov the rehearsal will I have cleared the Nicotine and other smell causing objects in my system to be cleaned away before I have to be at the event which will be hot and sweaty summer?

I don't outright stink but, I want to have a certain Image at this particular wedding and want everything to be right when I meet the other guest.

I am a experienced faster but, have never really done something like this before and, before I here all the Health concerns I realize them all so, please just answer my core question