The difference between ear eczema and otitis media lies in the different sites of onset and the different symptoms, as follows: I. Different sites of onset: The site of onset of ear eczema is mainly located in the skin of the external ear canal area, while otitis media refers to acute and chronic inflammatory diseases in the middle ear cavity. Symptoms are different: Patients with eczema of the external ear canal often experience recurrent itching of the ear, and the ear canal often produces some mucus or even mucopurulent secretions, which may also form local crusts. Otitis media often causes more pronounced ear pain, especially during acute attacks of middle ear inflammation, and purulent discharge may appear in the ear canal. Patients with chronic otitis media may repeatedly spill mucopurulent secretions, and their hearing may be affected to varying degrees, which may produce symptoms and feelings of tinnitus.