Otalgia's ear pain or an earache. Primary otalgia's from pain that originates inside the ear. Referred otalgia's from pain that originates from outside the ear. Otalgia isn't always associated with ear disease. It may be caused by several other conditions, such as impacted teeth, sinus disease, inflamed tonsils and infections in the nose and pharynx. Primary otalgia Ear pain can be caused by disease in the external, middle, or inner ear, but the three are indistinguishable in terms of the pain… (More on Earache)