Your symptoms suggest that you are are suffering from urinary tract infection
Treament of UTI is a proper course of antibiotics.
Your doctor has rightly suggested urine examination along with urine culture as that would tell about the correct antibiotic to be used.
In the mean time take CITAL syrup as advised
It is taken 2 tsf thrice a day mixed in half cup of water.
Take plenty of water and wait for the culture repert
After giving the urine sample,you may start a routine anti UTI antibiotic like CIPROFLOXACIN
or OOFLOXACIN,since culture report would take 3 days to come.You may talk to your doctor regarding this.
Anti biotic can always be changed after the report,if found necessary.