I have marks(scars) on my face and next week I am going swimming in my friends pool. I always have cover up on, so I don't want it coming off in the pool. Is there such thing as water proof coverup? Any advice would be helpful.

There are cover-ups that are waterproof. The best thing to do, I think is to tell your friends about the scars. Let them tell you if or when the makeup is washing off. Allow them to examine your face and ask questions about the scars. Secrets can do more damage than the truth.

The scars really aren't secretive. It was from acne and with make up on, it is camouflaged a little. But if my friends haven't noticed it before, I would have to tell the truth.