Ear infections are the most common cause of ear pain. When the ear becomes infected, inflammation and buildup of pressure cause pain that can be intense. People with ear infections often have other symptoms, such as sinus pressure or a sore throat because infections from nearby areas may affect the ear. An ear infection can also be a standalone condition. Most ear infections are bacterial, not viral. Ear infections are not as common in children as they are in adults, although they can be more serious. Middle ear infections are typically caused when bacteria or viruses from the mouth, eyes, and nasal passages get trapped behind the eardrum. Starts working on contact to relieve pain The result is pain and a feeling of plugged ears. Only 1 drop a day for 3 days.