Ear infections happen when bacteria or viruses get into the ear canal or the space behind the eardrum. They're common in children but can occur at any age, and they often develop after a cold or sinus infection. Understanding what causes an ear infection, how doctors diagnose it, and what happens during treatment helps you recognize symptoms early and know what to expect if you or someone in your care develops one.

These articles explain how ear infections develop, why some people get them more often than others, what pain relief options work, and when antibiotics are used versus when they're not needed. You'll also learn about prevention strategies and how to tell the difference between types of ear infections, since treatment varies depending on where the infection is located.