What Is a Middle Ear Infection?
A middle ear infection happens when fluid and inflammation build up behind the eardrum. This area of the ear can become infected after a cold, sinus infection, or other upper respiratory illness. When the eustachian tube becomes blocked, fluid can collect behind the eardrum and create an environment where germs grow.
Factors that may increase the risk include:
- Colds or sinus infections
- Seasonal allergies
- Exposure to cigarette smoke or vaping
- Frequent respiratory illnesses
- Younger age, especially in children
Middle ear infections are especially common in children, but adults can develop them too. Many cases improve quickly with treatment and supportive care.
Symptoms
Middle ear infections can cause discomfort and changes in hearing. Symptoms may appear suddenly and range from mild to severe.
Common symptoms include:
- Ear pain or pressure
- A feeling of fullness in the ear
- Fever
- Muffled hearing or temporary hearing loss
- Fluid draining from the ear
- Irritability or trouble sleeping in young children
How Is It Diagnosed?
Your healthcare provider will ask about symptoms and examine the ear using a lighted instrument called an otoscope. This helps them look for redness, swelling, or fluid behind the eardrum.
Additional testing may include pneumatic otoscopy, which checks how the eardrum moves, or tympanometry, which measures pressure inside the ear. If infections happen often or hearing concerns develop, a hearing test may also be recommended.
How Is It Treated?
Treatment depends on the severity of the infection, your symptoms, and your overall health. Some mild infections improve on their own with rest and symptom management.
Treatment options may include:
- Pain-relieving medications
- Warm compresses for comfort
- Antibiotics when a bacterial infection is likely
- Monitoring for symptom improvement
- Ear tubes for chronic or repeated infections
Most people recover within a few days, although fluid behind the eardrum can sometimes last longer. Following your provider’s instructions and completing prescribed antibiotics can help reduce the chance of the infection returning.
