Very sorry to learn about your sister's problem but the fact is that nothing beyond chemotherapy
can be done.
This treatment is palliative and not curative.
Till she is alive,she has to be managed conservatively only as nothing aggressive can be done.
Take care of her nutrition,manage her hemoglobin
levels and give full psychological support.
Look for any sign of infection as she is having fever
Infection has to be treated with antibiotics only.