Thank you for your query.
Your child seems to have a bacterial infection as the wbc count
Continue the medication as advised by your Pediatircian.
Give plenty of oral fluids to maintain hydration.
I advise you to do complete urine examination and culture to rule out the urinary tract infection
is not related to the current issue.
Fever may take time to subside and be in follow up with your Pediatrician
Hope I have answered your query.