--> Ear Infection types

The three most common types of ear infections are otitis media, otitis interna (also known as an inner ear infection or labyrinthitis), and otitis externa (also known as an outer ear infection or swimmer's ear).
Otitis media is an ear infection or inflammation of the middle ear.
Otitis externa is a type of ear infection of the outer ear or outer ear canal. The most common of these types of ear infections is otitis media.

Overwiew:
There are three common types of ear infections:

Otitis media
Otitis externa (also known as an outer ear infection or swimmer's ear)
Otitis interna (also known as an inner ear infection or labyrinthitis).