Please Help With Medical Bills

My brother was having serious back pains that was causing his legs to give out and not function, so he ended up going into the ER. They ended up sending him home to go to his regular doctor for a MRI, they ended up finding a tumor that was surrounding his spine, and that crushed a complete vertebra. He was than taken into surgery to try and remove the tumor, the surgery was completed and everything went as planned, another surgery was set for 2 days later to then go through his side to get any remainder tumor and to replace one of his vertebra with a synthetic one, both of these surgeries were 5+ hours long. He was in serious pain! He stayed in the hospital for a couple weeks then was transferred to rehab where he would have to learn to walk again, he was suppose to stay in there for 3-4 weeks before he was released so he could do 6 months of radiation and chemo for the cancer, Ewing Sarcoma. But throughout the whole time he was having stomach issues which they chalked  it up to being from all of the medication. But to find out it was a hole in his intestine, took him in for emergency surgery that took 5+ hours and found it was very extensive and there were several holes and he has a very bad infection to where they have to watch it very close, it is very LIFE threatening and scary. His wound is currently open they did not close him up. We are hoping for all the best for him.