[RLC12345678]

Well, Canidae is a "clean" food that contains no problematic ingredients that normally cause allergic reactions like ear infections. Is is possible that your baby got water in her ear during a bath or something? That will DEFINATELY cause an infection. You can get some ear cleaner from the vet that has a drying agent in it and put it in her ears after her baths to dry up all the excess water. If she is still getting ear infections after that, then I would suggest switching foods but NOT to Purina. You need to get a food that is free of CORN, GLUTENS (wheat, rye, barley), DAIRY, and SOY, which Canidae is which is why I am surprised your vet said it was her food. If a food switch IS necessary, I would switch to Natural Balance either Duck & Potato or Sweet Potato & Fish. But Canidae is such an excellent food that I would not switch unless you are ABSOLUTELY POSITIVE that the food is causing her ear infections...which I doubt it is.