<s>[INST] 6 year old male with high fever, pain on urination, lower right side abdominal pain. CT scan inconclusive for appendix. Urine culture showed no growth. Augmentin given for UTI. After almost 48 hours, still running high fever and pediatrician puzzled with no growth urine culture. Appointment made with pediatric nephrologist in two weeks. We are worried. He's had no history of UTI in the past. He has had intermittent low grade fever  with and without hives present over the last few weeks. No other symptoms. What could we be looking at? [/INST] Hi friend, Welcome to Health Care Magic Fever is generally due to infection. It is not always easy to pin point the cause. Augmentin is a good antibiotic - give another day or two / Some fevers settle down by fourth day only / if not, the child needs to be examined again...and the antibiotic changed.... Take care Wishing speedy recovery God bless Good luck </s>