If your child is vomiting or has a high fever, it is recommended not to have dairy products. A bland diet referred to in the medical community as the B.R.A.T. diet is Bananas, Rice, Applesauce, and Toast (or dry cereal) can help. Replace liquids a couple of a teaspoonfuls at a time in 30 minute increments until your child can retain them. If your child cannot retain liquid and may be dehydrated, call your doctor.