If you MUST drink, make it water! It quenches your thirst, and won't lead you to making faulty decisions.
Drinking alcohol can cloud your judgment and might lead you to falsely believe that "just one" won't hurt. It will - it ALWAYS will lead to another, and another. The site is littered with tales of ruined quits from drinking alcohol.
Please just don't do it. A quit is a terrible thing to lose.