What sort of paint should I use to cover a scratch on my guitar?

Dude inhale 6 guitars, eventually they will all get the special knicks. Gives the guitar more character. Hell my deans have em my fender , even my baby (a Martin) has a couple. It happens bro. If you don't want knicks on it, may be a good idea to just leave it in the case or hung up on the wall for looks