Thank you ladies. I'll forward that information about AZO to my friend so she can look into it, and I know that she is fastidious with cleanliness. Maybe too fastidious?

Her daughter's last Xray scan showed that she has does have kidney reflux so there is a mechanical reason for the recurrence, but at the same time it would be nice if there was a way to keep these infections to a minimum. She gets so sick with each one.