Vitamin C helps with mercury related problems. It's a good idea to use it.

I haven't used IV chelation, so it's hard for me to say good or bad. I know there are other people who have used it, but I can't say what their results were. EDTA is questionable for chelating mercury (it's good for lead), so I would suggest you avoid a doctor who recommends it. DMPS is good for mercury removal, pulling it from your tissue and from your blood.

The main problem with IV chelation is that it involves injecting a lot of chelator into your body at once. This pulls mercury out of your cells all at once, which may put a lot of stress upon your body's natural chelating systems. It's likely that your system will not be able to remove it all and the mercury will be redistributed in your body. This can cause problems or can even be dangerous.

Does the benefit of IV chelation outweigh the risk of redistribution? I'm not certain. Please ask someone who has done it to find out about their experience.

The way that a lot of people chelate is to wait for fillings to be replaced and then begin frequent-dose oral chelation. One method which is good for beginners is the Cutler Protocol since everything is laid out for them. The idea is that taking a chelator (DMSA or ALA) every 3-4 hours, including at least once overnight, will keep the effect going and prevent redistribution. This is usually done for 3-5 days followed by a 3-5 day break. This should be accompanied by supplements like vitamins C and E, selenium, zinc and others. Drinking lots of clean water and sauna baths are also helpful.

Expect worsening symptoms while chelating. Improvement will likely take many months and complete recovery will possibly take years of chelating. The key points are that feeling bad isn't always a bad thing while chelating and chelating is a long slow process. In other words, don't chelate for a week and then decide that it's not working. It takes time to see results.

Frequent-dose oral chelation is the method which has helped me feel much better after I replaced my 12 silver fillings.