<s>[INST] Overview of Ear Infections [/INST] 
Infections of the ear can be either bacterial or viral. They are painful because of the inflammation and buildup of fluids in the sensitive middle ear. It is possible to develop an ear infection in both ears, which can cause hearing issues and other complications.

There are two general types of ear infections: acute and chronic. An acute ear infection is a singular, isolated infection that is painful but does not return after treatment or clearing up. Chronic ear infections recur often and never completely go away. They can cause serious hearing issues and damage to the ear. Source: BASS MEDICAL GROUP . Link: https://www.bassmedicalgroup.com/blog-post/ear-infection-how-long-does-it-last-when-should-you-see-a-doctor. Field: Otolaryngology. Disease: Ear Infection </s>