I would advise looking very seriously at the suggested protocol I developed which is centered around oleander and several other powerful cancer fighters and immune boosters.
As best we can tell a protocol similar to that one which uses oleander as a central item is about 95% successful in stage I and II cancers and 85% with stage III and IV. You wife should have a leg up, since she has not had chemo and radiation (that was a good move, in my opinion) - neither of which cure cancer and both of which tend to cause cancer down the road as well as severely harm the vital natural immune system as well major organs.
And I will add that we have had several people here and elsewhere report success using a combination of oleander, Budwig and Essiac Tea.
If you can find yourself some oleander plants which have not been contaminated by pesticides, you can make your own oleander extract - and if you do, I suggest looking at making a concentrated oleander skin cream according to the instructions found in these two articles (note that it calls for including some DMSO):