Middle ear infection (otitis media) is a bacterial or viral infection of the middle ear, located behind the eardrum. This condition typically manifests with symptoms such as ear pain, fever, dizziness, and hearing abnormalities. The infection often develops as a result of upper respiratory tract infections like the common cold, flu, allergies, or a sore throat, which lead to congestion and swelling in the nose, throat, and ears. Some individuals, particularly children, may be more prone to middle ear infections. Symptoms can include earache, fluid discharge from the ear, and difficulty hearing. In children, fever, loss of appetite, and irritability may also be observed. While most middle ear infections resolve on their own within one to two weeks, some cases may require antibiotics for treatment.