Hi.. I'm, 29 Yrs Old, Female.. Last Sept 16, 2015

Hi.. I'm, 29 yrs old, female.. last sept 16, 2015 had a urinalysis and the result is wbc: 10-30, rbc 0-3, trace albumin. The health physician instructed me to take ciprofloxacin twice a day for 7 days.. After a week I underwent urinalysis again. With the result of wbc 10-15, rbc 0-3 with trace albumin. What is the indication of this? Is the antibiotic not effective? Or is this an indication of a more serious disease?