You might want to consider giving him a round of colon cleansing. Colon cleansing for mercury poisoning (and yeasts) is really important and helps as much as chelation, should accompany chelation as a matter of fact because chelation without colon cleansing is not a very good idea, Being that he's young he's probably not real dirty down there but some extra help should help a lot. there's a website at http://www.humaworm.com , the owner is suppose to be real easy to talk to, will do a brief phone consult I think, their colon cleanse stuff is suppose to be real good, and he should be able to give you a oretty good idea abot how to approach that with a 6 year old, doses etc.

Chelation helped me a lot, colon cleansing helped me a lot too. If you can keep the stuff moving on out without congesting down there his lymph glands should clear right up. Several months of chelation did not help my lymph glands near as much as regular colon cleansing.

Algin is a deriviative of kelp, it is safe for children.