White Heat Ring on Furniture

I have had good luck masking dings on wood by rubbing a walnut on the surface and then buffing a bit. I tried this once on a water mark (with the white ring) and it worked pretty well. Of course, if you are talking about an antique or something else of potentially high value, I really cannot say that this would be a good answer... There may be a more suitable solution? Best of luck! :)