If breast cancer came back what to do?

Must see: your oncologist, so many treatment options are now available to control of your disease. Good Luck

Depends....: ...on many factors but first, you must not despair. Therapy for breast cancer is quite effective in many circumstances. I suggest you get yourself a good oncologist who works in a multidisciplinary setting and preferably has access to clinical trials. Not sure how that works in Argentina but your family doc should be able to help. Saludos y mucha suerte.