My father has been dealing with prostate cancer for a couple of years now and is about to begin treatment. Does anybody have any information or personal testimonials about how marijuana has helped you or your loved ones in their battle with cancer or other illnesses? Any information would be much appreciated. I have read many articles suggesting highly concentrated cannabis oil can be effective not only in treatment of symptoms but also in the actual treatment of the cancer itself. Does anybody know if there is any science behind this? I am very familiar with the high and physical effects of cannabis but I cant find any solid conclusive evidence that speaks to its efficacy in eliminating the cancer cells themselves. Any help or personal testimonials is much appreciated.