This is from memory, but it seemed like there was the better part of a year when it wouldn't be more than two or three weeks after she was over one that she'd get another one.
Really, she should have been referred to the urologist a lot sooner.
That must have been hard, it's good she's on regular antibiotics now. Mine seem to be occurring once a year, almost to the day.
I had issues with bedwetting as a child and into my late teens. I went to sleep specialists, urologists, and psychologists but nobody could say anything about it. I think it's somehow related to what I've been experiencing lately but I don't know what to do about it. I was always getting infections as a kid too (ears, eyes, bladder, kidney) but not really flu or colds (despite not being vaccinated). Has your wife experienced any of these things in her youth?
Really, she should have been referred to the urologist a lot sooner.