Peritonitis is commonly treated initially with supportive care (fluid resuscitation, oxygen, analgesia), antibiotics (including those, such as metronidazole, which cover anaerobic bacteria common to the gut), and in severe cases surgery (laparotomy to identify and treat the source of the peritonitis). | Peritonitis is commonly treated initially with supportive care (fluid resuscitation, oxygen, analgesia), antibiotics (including those, such as metronidazole, which cover anaerobic bacteria common to the gut), and in severe cases surgery (laparotomy to identify and treat the source of the peritonitis). |