<s>[INST] Three main types of ear infections are? [/INST] Outer ear infection (otitis externa)
An outer ear infection – often referred to as swimmer’s ear – is typically caused by water that stays in the outer ear canal, providing a moist environment for bacteria to grow. This is the most common type of ear infection for adults, although many kids get them as well (especially after frequent swimming or bathing). Children and adults who frequently insert cotton swabs into their ear canals are also more likely to get outer ear infections.

Middle ear infection (otitis media)
A middle ear infection is when fluid builds up in your middle ear, the air-filled space behind the eardrum that contains the tiny vibrating bones of the ear. When your Eustachian tubes are working properly, they drain fluid away from your middle ear. But if the tubes are swollen because you’re sick (with a cold, flu, strep throat, etc.), the fluid can no longer drain. Instead, it collects behind the eardrum, making it easier for bacteria to grow.

Inner ear infection (otitis labyrinthitis)
Your inner ear is the part of your ear that’s responsible for balance, hearing, and other critical functions. Thankfully, inner ear infections are rare. They happen when your inner ear is inflamed or irritated – again, usually because of a cold, flu, allergies, and the like. An infection in your middle ear can also eventually spread to your inner ear. Source: VYBE CARE. Link: https://www.vybe.care/blog/ear-infections-9-commonly-asked-questions/. Field: Otolaryngology. Disease: Ear Infection </s>