Metastatis Breast Cancer. Want to give?

Hello Doctors, My mother's breast cancer recurrered as metastatis breast cancer. She is getting treatment in Jabalpur Madhya Pradesh, which I have confirmed and assured by Tata Memorial hospital cancer specialist doctors that ongoing treatment is correct. In a treatment doc is giving her x-geva or zelandronic acid and 8 cycles of chemo, but she is in pain, she is not eating anything (she says i am not liking anything to eat all food is became tasteless after medicine) and day by day she is getting weak. 1. My question is what can I best do so that her pain got relieved and atleast her quality of life will increase? 2. Any other suggestions would you want to give? For your reference I have attached the snap of prescription that doctor giving my mom. Thanks.