Suggest Treatment After Breast Removal Due To Breast Cancer

I am writing for a friend without a computer. She just had a breast removed and there were no additional signs of cancer. Still, her oncologist is suggesting further treatment for prevention -- my friend referred to it as "taking pills" -- I think perhaps it was chemotherapy, She want no more medical intervention. Would you be able to review her medical reports and advise her on natural methods of preventing a return of cancer? I believe I have a Connecticut database now, and it wouldn't be far for her to drive. L. Hodges