My mom has stones in her both kidneys, suddenly 2 months before her creatinine raised to 6, before that she is fine, we have done pcnl on one side, and creatinine level came to 1.3 and again some times its fluctuating, like 2, 3 like that, doctor said its due to infection, and asked to use antibiotic cefixime, when we used it, again creatinine level reduced to 2 from 3, is it because of infection? When it will get stabilized? Another side pcnl is yet to be done. Her urine output is good, and she do not have any fever, or any other symptoms of swelling.