Hi H.,
My 5yr old daughter was diagnosed with renal reflux grade 1 in her right kidney. Her urologist put her on antibiotic for 1 year that was in Jan 2006. A year later, Jan 2007, she had another VCUG and there was no signs of reflux. So, she has been taken off the antibiotics. During the year she was on the antibiotics, she did not have any UTI's. I gave her the antibiotics every night around bedtime.
I know your son has been diagnosed as a grade 5, but has the urologist ever put him on antibiotics for at least a year?
I wish you and your son well.
D.