That's pretty tough... sounds like a pre catylsed lacquer. The only way may be to strip it and respray. If it is a cellulose lacquer then you may get away with only stripping (or scraping) the damaged area and respray the lot, the new layer should soften the previous layers and provide a good bond. (I think)
I will ask my (industrial) paint provider for more info when I am buying paint next week but the cloudiness is most likely below the surface and thus can't be corrected unless the surface is stripped to the damaged area.
Cheers
Joe