Help with my mom’s cancer treatment

My name is Alana and my mother is very sick; she has cancer. She was first diagnosed in summer 2017 when her kidney started failing because of a tumor. The doctors said the only way for the cancer not to spread was by taking out the kidney. After surgery the doctors ran some tests and found out that the cancer had spread so she started taking chemotherapy. As time went by she started getting worse and her cancer spread all over her body. My mother has a very rare cancer called rhenal medullary cancer, not many people have had it therefore there is not enough information about it and how to treat it. Doctors don’t know how to cure it so they’re trying different types of treatments and medications to see which one might work. The treatments as well as the medicines are expensive and we don’t have the amount of money needed to pay and buy the medicines. My mother has sacrificed so much for me and I would like to do the same for her. Please help me pay for my mom’s medical treatments and medication. Thank you