I am not sure if castor oil helps or not. Were you hoping to use the Casey method? Then that would be worth trying. Other things you may do is use aloe gel. 2-3 spoons a day. Perhaps you can increase the dose after you use it for a week/ten days. You also could use Celantro everyday with your foods,one of the best metal removers from your body.
Also check this out on this site...//www.curezone.org/forums/m.asp?f=83&i=134. It is vitamin E theapy. Do not take any juices at all. Do you take any meds for this?
Please keep us posted on what you decide to do and how you feel afterwards.