What Causes Earache?
Earache is caused by the nerves in the ear being affected by something either from within or without which produces a swelling of the parts immediately adjacent to the nerves in the ear, and which press against the nerves; as the nerves cannot go any place else they send a warning to the brain that they are being crowded and pressed against. The pain you feel is the nerve in the ear warning the brain that something is wrong in the ear.