What Parents Should Know About Earaches 2 out of 3 children will get at least one earache before their third birthday Sponsored by Wheaton Franciscan Healthcare - All Saints It's a common childhood complaint: an earache. Ear pain often heralds an ear infection — the leading reason children visit the doctor. The American Academy of Pediatrics (AAP) recently updated its guidelines for managing ear infections. Arm yourself with the latest about this frequent child illness. The ear has three parts: the outer, middle, and inner ear. As you might suspect, the outer ear is everything you can see, plus the ear canal. The middle portion involves hearing; the inner part plays a vital role in balance. Most ear infections attack the middle ear, specifically, the eustachian tube. It's a structure that links the middle ear to the back of the nose. It drains fluid from the ear. When bacteria from an illness infect the tube, it swells up and blocks fluid inside. The result: a buildup of ...