Thanks for the query. As per the clinical history, you are a 29 yrs old lady, suffering form Urinary Tract Infection, and have already received a course of Antibiotics (ciprofloxacin). As per observation, your urine has sediments (white tissues/stringy particles). In this context I would like to advise you the following: 1. Recheck you infection parameters like Total white blood cell count (and differential count). You can also get your Urine routine examination done (culture may be done, but it may be negative). A course of antibiotics may need to have been repeated 2. Get your Random Blood sugar levels done (to be on the safe side) 3. If not relieved, you can get a USG of kidney/ureter/bladder done, since stones in the urinary tract can lead to persistant UTI and flank pain. Post void residual volume of urine may be checked. 4. Drink plenty of water/fluid ( 2/day) 5. Avoid using unclean washroom and maintainence of personal hygiene is important. Please consult your physician for further clinical check up and investigations. Hope this helps.