need help urgent

My mother is 63 and currently living in Costa Rica. She has no health care coverage or income aside from a very small Social Security pension.

This is the situation: she has end stage 4 emphysema and requires constant oxygen as well as help with basic living duties. She is currently in the hospital here in Costa Rica but is recieving minimal care since she is not a resident and is at a public hospital. I am struggling to figure out a way to get her back to the U. S. and have reached out to angel flights/mercy flights. If she didn’t require so much oxygen I could fly her back commercial. Anyhow, I digress.

So here I am in Costa Rica and I think the best thing I can do is to start an application but I have absolutely no idea how. I have limited internet and phone. I live in FL so that also will be her state of residence.

Can anyone provide some guidance?

Thank you.