Thank you for your query.
If your son is having recurrent urinary tract
infections then you must do the following
1. Also get a culture of the urine to know what organisms are causing the infection and what antibiotics will work
2. Maintain good hygiene. Retract his prepuce and clean it once everyday. Teach him to do so more frequently. Some experts also advise circumcision
to get rid of recurrent infections but that is your call. And i think its not necessary at his age.
3. Maintain hydration. Ask him to drink lots of fluids.
4. Get an ultrasound
. Sometimes there may be a stone which is causing so many RBCs. It can be removed easily.
5. If a boy gets recurrent urinary tract infection we always recommend a micturating / voiding cystourethrogram
(MCU or VCUG). It helps us to know whether the urine from bladder is going back into the kidneys.
You should definitely consult a pediatric surgeon for further opinions. It will help prevent any further damage.
Hope that helps
God bless you