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Overview
Often follows ear infections.
Needs antibiotics.
When to get medical care
Call 911Not an emergency.
Get care todaySwelling behind the ear.
See a doctor soonGet seen today instead; don't wait for a regular appointment.
Causes
Caused by ear infection spreading.
OwieClear has pages on 1 condition that can cause red, swollen, painful area behind the ear. Each shows how soon to get care.
Common causes
- MastoiditisOften needs care today
An infection of the bone behind the ear, usually after an ear infection.
What you can do at home
- Get checked.
Medicines
IV antibiotics.
At the doctor
Diagnosed by exam.
Questions you may be asked
- Ear infection
The exam
An ear exam.
Tests
- CT
Prevention
Treat ear infections.
- Finish antibiotics
Check your symptoms
Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.
Sources
Last updated 2026-11-13.