Yes, I've read information that has lead me to conclude that killing off candida yeast can actually make people with amalgam fillings much worse. Because she still has fillings, you won't want to use any chelators like alpha lipoic acid (ALA) or cilantro. The only thing I would really suggest would be Algin, because it won't mobilize the mercury, only absorb it from the colon so it doesn't get re-distributed. I'd also suggest large amount of a good quality vitamin C (I use Citrus Bioflavonoids (Vitamin C)). I'd start with at least 4,000 milligrams per day in divided doses throughout the day. This will help with the free radical damage mercury is doing in her body and brain. You might also want to use a good quality vitamin E supplement (one that has all the 8 components of vitamin E because each component has different health benefits). In fact, vitamin E has been shown to significantly reduce the nerve damage to the hearing and balance functions of the ear caused by drugs and other chemicals). The one I use is Vitamin E Complete.

I'd also suggest that she avoid caffeine at all costs. Caffeine enables mercury to pass through the cell walls much easier. My 90-year-old grandmother was having problems with small episodes of vertigo that would come on very suddently. These episodes almost always seems to follow shortly after she drank a cup of coffee. Once she stopped drinking coffee, I think these "attacks" stopped or at least subsided to very rarely.

I hope this helps. Feel free to contact me if you have any other questions.