Amy, I was trying to remember who was having the bad taste in mouth, because I read something interesting recently. Lately my friends and I have been on a "flavor tripping" kick in which we eat tablets containing dried miracle berries. Miracle berries make sour foods taste sweet for anywhere from aboug 30 mins to 2 hours, so we'll eat sour cream and limes and rhubarb and things instead of having a sugary dessert. While reading up on the berry, I saw that it was suggested some people who experience persistent metallic or other bad taste in mouth from medication find that eating the berry gives me a break from that bad taste. Who knows, maybe it will give you some temporary relief! Thinkgeek.com has the berries, as do a few vendors on eBay.