My dentist told me chew Trident White, it has xylitol(sp?) and I've tried biotene, didn't help me. I sip on soda alot, water makes my mouth drier..soda through a straw, I tell meself it isn't hurting my teeth! I also carry a xylitol spray in my purse that I got from the dentist, it helps. I always brush my teeth before bedtime and use a dental rinse too. My burning mouth is back after 5 months of calm, but so is my PN, back pain and joint swelling, the remission of sorts is over and it's back to constant pain. Funny thing, I dread summer because of heat and we didn't have much heat so summer was great, now is when I'm sposed to be comfy and its raging away like in the early days....sheesh!