Continue Medications prescribed by your pediatrician and fallow bellow advices Rest and relaxation. Encourage your child to rest in a dark, quiet room. Sleeping often resolves headaches in children. Use a cool, wet compress. While your child rests, place a cool, wet cloth on his or her forehead. Offer a healthy snack. If your child hasn't eaten in a while, offer a piece of fruit, whole-wheat crackers or low-fat cheese. Not eating can make headaches worse.