Well, that's something different. You might have to bite the bullet and remove everything then repaint the piece in question if the paints been on for a few years.
However, after saying that, there is a product out there that might do the trick, it's made by a company "Polly S" and the name is "Easy Lift Off" or "ELO"
This removes paint from "unwanted" areas.
Try that first, then sanding/repaint would be last option.
See ya in the funnies...................