Cancer treatment for my sister Mary

My sister Mary who lives in Mexico is having a hard time since last year when she was diagnosed with this rare type of cancer called monophasic spindle cell sarcoma on her leg.

It was removed last year but unfortunately due to the wound not closing fast enough she couldn't get her radiations on time, now that the wound is closed months later she needs chemotherapy because the cancer expanded to her lungs and it came back to her leg again but her insurance is denying the chemotherapy treatment.

We are trying to make the insurance to pay but it will take time and unfortunately cancer does not wait and every day the cancer is spreading more and more, please I beg you to help me to save my sister Mary ❤️