Hello, my daughter is 27 months. I made urine test and the results are like this nitrite positive, leucosyte pozitive and max of bacteria. After i made urine culture and she was infected with echeria coli. I didn't gave a antibiotic, but i used natural drink with cranberries teas. When a do a urine test after 10 days, the result are leucocyte still pozitive, nitrite negative and less bacteria. Are this second result positive, or i should gave her antibiotic.