An Italian Study published in Pediatrics showed that children with recurrent Urinary Tract Infections (UTIs) do no better than placebo when treated with long-term prophylactic antibiotics, and they often suffer side effects. This should not be a surprise, because the treatment does not get to the cause, which is acompromised immune system. Part of the immune system is the good bacteria that protect against abnormal bacteria taking hold in an infection. For most children, I have seen a much better result by treating yeast overgrowth and food allergies. Diet can play a huge role for such problems.
See Family Practice News (click here) December 15 issue, p.12. and International College of Integrative Medicine (click here) and The Yeast Syndrome by John Trowbridge (click here)