When should I call my doctor if my child has the stomach flu?

When should I call my doctor if my child has the stomach flu?

Victoria Paterno (Pediatrician) gives expert video advice on: When should I call my doctor if my child has the stomach flu?; If my child has a bad case of the stomach flu, should I go to the emergency room?; Should I call the doctor before giving my child medicines for diarrhea or vomiting? and more...