I have a cyst in my gums?

It's caused from an Abscessed tooth I had. It's above my front teeth and I can feel it under my nose. It's squishy and the size of 2 marbles. Today I'm getting it removed at 3:15pm (it's 1:24pm now if that matters haha). Anyways is that gonna hurt?? They have to like cut it? And pull out the cyst??