You got several options, you can just stay on a tourist visa for up to three years, then do a visa run to reset the clock. You'll have to renew your...
Change the bandage and clean the wound daily, get some cream antibiotic stuff or betadine to keep the gangrene down, after 4-5 days take the bandage...
"I was a good student. I comprehend very well, OK, better than I think almost anybody," - President Trump comparing his legal knowledge to a Federal judge.