Is it growing or is it staying the same size? There are some other things she could try at this point from magnetic pulsing to enzymatic therapy and a few things between. Often Breast Cancer is linked to poor lymphatic drainage. Good diet, hot/cold shower therapy, lymph massage, and gentle rebounding(mini tramp) can all help move stagnant lymph and help flush toxins. Cleansing would also be a good idea so elimination organs are working properly eliminating toxins and not recirculating them. Magnetic pulsing kills organisms and increases circulationto the target area. Systemic enzyms help break down the protien sheild on cancer cells so the body's immune system can deal with them effectively.
Sounds like your well on your way. Hopefully there is some ideas that can take you further along.