My 18 mth old dd is a constant dribbler and it does not stop even if she does not appear to be teething. She has 11 teeth (only 3 bottom front teeth - should I be worried?). He chin can get very sore with dribble rash and her clothes are constantly wet. Has anyone else experienced this and does it ever stop? Is it caused by theeth or should I be thinking of something else? Thanks all of you!