Thank you for your query,
Is she passing urine large quantities or just dribbling?
Is taking large quantities of water?
What about sugar in urine report?
These are important to advise you further.
Frequency of urination is due to urinary tract infection
and culture report to be seen.
But taking excessive amounts of water and passing frequent, large urine quantity needs evaluation with urine for sugar, ketone bodies
and blood sugar and electrolytes estimation.
So consult your Pediatrician
for further evaluation.
Hope I have answered your query.