Sorry to hear about your sister...My cuz has had breast cancer and was at that stage too lost both breats and lyphnodes in her arm pits i can give you some help in a very good place to go for your sister that helped my cuz marie beat breast cancer marie was only 35 when she was dx with it and she is now cancer free for two years now but she tell me about this place in chicgo that she went for treatment and she said it one of the bests at fighting it she still flys there every six months for check ups if you want the info on the place i can get it for you i guess they are the best at fighting it head on..