Michelle I agree with Garcia. Glutathione can be contraindicated for some people and DMPS injections can be very risky (of your friend had those).
Chelation needs to be done *very* carefully and some protocols are highly dangerous, and can end up overwhelming your bowels, liver etc especially if they're already compromised. Also I bet your friend wasn't on the right adrenal and thyroid support. Chelation is *extremely* hard on the endocrine system as I've found out myself.