Kidneys achieve their full potential of growth within 1st two years of life and there is no growth potential after that. Kidney which has a reflux usually remain dysplastic and may not grow even after correction of reflux. There is no advantage of Deflux on kidney’s growth at this age of the patient. I think he should continue antibiotic prophylaxic. You could see Dr. Ballal / Dr. Shankar at Manipal Kidney Institute in Bangalore.