What a wonderful parent you must be! My mom had this problem years ago, and the old, old, remedy of cranberry juice ALWAYS helped her. You can water this down if your daughter doesn't like the flavor, but don't mix the juice with any other juices or liquids as this seems to change the effectiveness. I have also read that if you can possibly allow the bladder to fill and stretch this allows the miniscule tissue folds of the lining of the bladder to open up and this hidden bacteria can then be killed. I know asking your little one not to pee until her bladder is really full will be really hard, but maybe she can do this once in awhile when at home and in a safe, relaxed atmosphere. I see a nurse practicioner-midwife who specializes in herbs. This might be something to check out in your area. She is an extremely qualified health practicioner who is not afraid to investigate herbal remedies. Good luck and God Bless.