give yourself over to the wolf. let it eat the parts of you that are sick, that are damaged beyond salvage. let the wolf in and let it clean house, and let it leave again. the wolf knows which parts must be swallowed. you do not need what it takes, and where it bites you the wounds will heal. let the wolf in and let it eat you, and let it leave again.
You could also give yourself to the maggots. They eat dead flesh first, and will leave the living tissue alone if you just make sure to not let them feed too long. People have survived awful wounds without immediate medical treatment because these tiny soft things cleaned away the necrosis. We take the maggots for granted because what they eat disgusts us; it smells bad and it carries disease. But they transform it and make use of it, and then turn into entirely different beings with wings. Perhaps we don’t see them as noble creatures like we do the wolf, but perhaps we need the maggots at least as much.
Having seen how maggots can be used for the healing of diabetic wounds that refuse to heal with modern medicine, remembering that they too can help heal is vitally important.