What should you do if you have bacterial infection all over the body? antibiotic won't help

Peculiar diagnosis: Hmmm.... I don't mean to sound undiplomatic, but a "bacterial infection all over the body", not helped by antibiotics, sounds screwy. If self diagnosed, see a doctor for professional evaluation. If it has been medically diagnosed, discuss further with the doctor, and perhaps ask for referral to an infectious diseases specialist, or dermatologist if it involves primarily the skin. Good luck!