There is a discussion concerning chelation with the Amalgams still in the mouth a few posts below.
With lipoic acid, be careful not to take much. I would look into the Cutler protocol on this.
MSM has its proponents, but unlike cilantro and chlorella, I have not heard hardly any one with mercury toxicity say that it has helped. Some people may have a negative reaction to it due to redistribution effects. I suspect that with most people, it doesn't do much either way in this regard.