This question already has an answer here:
Coworker is pushing me to go drinking with her, but I generally abstain from alcohol. She's higher up than me in the "food chain", so to speak, and is great friends with my boss.
I'm not sure how to go about this. I generally stay away from alcohol since alcohol has some bad memories of some relatives. In any case, what is the most polite way of turning down a drink? I've tried just saying "No" or "I'll think about it" but almost every day she is asking me to have a drink.
What is the best way to approach this? I want to give a firm answer that won't have her leaving follow-ups a few days later.