Help My Mother Fight Breast Cancer

My mother has been diagnosed with Carcinoma right breast 2nd stage. 3x3cm hard nodular lesion at 7’o clock position and few enlarged, hard lymph nodes, HPE showed invasive carcinoma NST, Grade-3 (pT2NO). IHC showed ER/PR — negative, Her-2/neu — positive.
The only cure which doctors are suggested is the surgery, followed by chemotherapy and Radiation therapy which require huge amount of medical cost. Surgery was done and 6 cycles of Chemotherapy is done so far. Since, we are already in debt, I am totally devastated and crushed financially for the further treatment.
My mother has always been polite, good and caring for all.
Living without my mother is a dark nightmare for us.