I have a bathroom light fixture that is "brush nickel looking." It's got the brushed nickel plating, but I think underneath it's just a basic metal. Anyway, it's starting to rust in places. It's only two years old and I like it, so I really don't want to replace it if I don't have to. Any ideas on how to remove rush from a bathroom fixture? I'm open to anything from commercial products to homemade solutions. TIA!