hi C.
unfortunately i know more than i would like about urology issues. i haven't had to deal with yeast infections so i can't help in that area. you need to schedule with the urologist to address the uti's though as it can be a sign of a problem that could lead to damage in her kidneys.
we started our urology process in-utero when they noticed my son's kidneys were slightly dilated and so they followed it through the pregnancy and once he was born. he didn't really diagnos until after birth. he had to have a test - VCUG (voiding cystourorethagram SP??)when he was 17 days old. i'll warn you that it's not a fun test, but the techs in radiology at children's really were great and moved quickly. they put in a catheter and then fill the bladder with dye. they pull the cath and watch as your child "urinates" the dye to see what happens. the child is under an xray machine while this happens so that they can take pictures of the process. the xrays are kind of a cross between an ultrasound and xray - they use radiation, but can see it live on a monitor too. basically what they watch for is to see if all the dye empties out or if any of it backs up or refluxes back to the kidney and if so, how far it goes. they grade it based on how far it goes. my son's is grade 5 which is the worst and means it goes all the way back to the kidneys and pools outside. because the urine never fully empties, it puts them at an increased risk for uti. the danger is that if the urine becomes infected and it's backing to the kidneys, it can lead to kidney infections too and cause scarring. worst case is scarring can actually lead to bad enough damage that they eventually lose a kidney. so, it's definitely worth checking into. our ped urologist is the chief of urology at children's - dr docimo - and he's very good. with recurrent uti's, i think it is pretty routine to test for reflux as i believe it's one of the primary causes.
our son has been on preventative antibiotics since he was diagnosed....he's now 20 months. this is because the reflux itself isn't the big problem - it's the increased risk of infection and it easily spreading to the kidneys. he had a repeat VCUG at 1 year and it did not show improvement. we decided to wait until he is 2 to recheck for signs of improvement. if there is none, we will do the surgery to correct it at that point. the surgery is supposed to be extremely successful. our ped has compared reflux for a urologist to ear infections - they deal with it all the time and they know how to deal with it.
i know this was a ton of info. if you have any other questions or such, please let me know.
H.