First of all you have a potentially life-threatening situation. It is nonsense about "maintaining anonymity". Secondly it is an untruth that you need health insurance to be treated in the United States if you have no money.. It's an urban myth. There are clinics everwhere that treat on the basis of ability to pay. In hospitals there is thre Hill-Burton act which mandates the hospital eat the bill for indigent patients. Curiously, there is a method of regenerating skin using small-intestine-pig mucosa (Discover magazine did an article), that the Veteran's Administration has been experimenting with to resture skin from battle wounds.
Wow, that sounds painful and dangerous. I don't have insurance either but, that definitely sounds like a Dr issue. Do you have an er in your area that can help with insurance stuff? In my city, there is an er you can go to and they will treat and sign you up with financial assistance. Because, from what I've heard of that flesh eating bacteria, they have to pack it with a bleach substance. Anyone, correct me if I'm wrong about that. But yes, a doc is needed in this case. Please keep us updated on progress.