Healing process How long it will take ?

My mother diagnosis with breast Cancer on oct 2012. She had chemo(TAC) for six month then she had surgery. After , her surgery the doctor came to know the cancer spread on pictorial muscles. So , they had to do another surgery . She had another surgery. After , her second surgery she started radiation for three months. Its almost four months ago she done with radiation . But , she has still pain. I thought she will be fine after radiation but she has different issues . She is taking Arimidix and oxsicodine for pain. She do some exercise and try to eat healthy.

Mostly  she has lots of pain in her arm , shoulder . back. Specially in her arm and she feel heavy.

One time she was not able to move her arm but after few days she started to move like it use to be.

Then she had urinary tract infection.

She was admit in hospital for few day . They gave her antibiotics through IV.  My question is that how long its going to take her to heal?

I had to resign from my job. I am the only one who taking care her. We are going through financial hardship. She don't have any health insurance too. I want she heal then I can focus my life.

Thanks