my daughter is 8 months old, has diarrhea with watery and bright yellow stools, x6-7. Pediatrician started bifilac twice daily 15 mL (gave for a week, not helpful), and told to start Zenflox OZ (if not under control). I hv yet not started the antibiotic, should i start as things are not looking up. Diet is mostly rice, banana, potato, sabutdana.