could be urinary tract
Welcome to HealthcareMagic .
Foul smelling urine indicates urinary tract infection. I would suggest you to consult a general surgeon
and get urine analysis done before starting with antibiotics.
Once antibiotics started urine won't show positive result. In urine routine you are likely to get more number of pus cells.
After confirming infection urine culture should be done to know which antibiotic is effective. Urine analysis takes hardly one hour. But culture takes 3 days. Till culture report comes broad spectrum antibiotics like nitrofurontoin and a alkaniser syrup may be started.
Also ask your daughter to drink more water which will prevent formation of stones in urinary system
Hope I have answered your query . If any further queries are there I would love to help.