Susan
So sorry to hear about your breast cancer. Flax hulls which contains high levels of a botanical lignan called secoisolariciresinol glucoside or SDG is particularly effective. It gets converted to mammalian lignans called enterodiol (ED) and enterolactone (EL) by friendly bacteria in the bowel. ED n EL are powerful antioxidants and great free radical scavangers. You will have to take a strong powerful probiotic with it and LB12 would be good.
Tests n trials with Flax Hulls have shown in to be effective in the treatment of cancers particularly breast, bowel and prostate. Mainstream medical and homeopathic practitioners seemed to agreed and there are lots of studies and reports on it. You can check that on the internet and also at the weblink below.
I hope you find something for the affliction soon.