I guess it depends on how severe the damage is. If it's a tiny bit, grab hold of some epoxy and glue it back on!

If it's major, try bringing it to a guitar tech... good luck man!

Did you chip the headstock? It's kinda blurry in the pic...

If it's just a chip, and you're worried that the paint will start to flake off in that area, you can just seal it with epoxy glue. It'll prevent the paint from further peeling off. And if you want to make it less obvious, just color over the epoxy with a black marker once it's dry...

But seriously, you can just epoxy it and leave it as is... what's a guitar without a few battle scars here and there?