I needed it for my husband, and for his great aunt.
Husband got it from the hospital during a back surgery. His great aunt got it when a doctor cleaned her ears out, and she began to bleed. She got it again from a hospital stay.
Are you sure it was Vancomycin? As I understand it Vancomycin is an antibiotic that does not leave the gut. Unless he picked up C-diff or colitis Vancomycin would do not good. I know there is another antibiotic that sounds a lot like vancomycin but that name escapes me now, it would work on the back.