Keep in mind, even healthy people have cancer cells, but the body deals with them effectively
This is a myth. Not everyone has cancer cells. The confusion comes from people not differentiating between rapidly dividing cells in the body and actual cancer cells that have a completely different morphology. Same for benign tumors, which have some characteristics of malignant tumors, but still have differences that mean they are not malignant.
Ozone therapy would be my first choice. In this case it could be done through ear insufflation:
http://curezone.org/forums/fm.asp?i=1576947#i
I have a two page write up on cancer that I can send you that discusses primarily herbs for cancer along with a little about ozone and diet. Send me a private message with an e-mail address I can attach the file to and I will get that off to you as soon as I can.