Glad you got on top of it early, hope the abtibiotics kick in soon and she feels better. Did she have an ultrasound of her kidneys last time? DD2 had a UTI as a little one and the GP treated it, but when we went to emergency for something else they said all children her age (18 months at the time) should have a Ultrasound even if they only get one UTI to check there are no renal problems. They may have changed practice now but maybe worth asking about if they havent if this her second UTI