I'd like to recommend Dr. Schulze 's Incurables Program. His information can be found on this site but I'll past a link below. I would also like to recommend the new Fit for Life book by Harvey Diamond as he really explains about cancer, what it is, and how to treat it, naturally and effectively.
I wish you and your grandmother the best of luck and my thoughts are with you! I am sure you have come to this forum for a reason and your instinct is a good one.