I am almost 12 years post tx. I wear a mask on planes (yes you can fly), when I go to the pharmacy, if I am in a crowded area, lots of kids are....it is really just using common sense. In those 12 years I have had 6 colds. Your center might have rules, be sure to follow them. Also wearing a mask at any doctors office, clinic is a must. As far as alcohol, ask your center their rules. Drinking water along with a drink may be required.
good luck
Joanne