Occasionally an ear infection will involve the ear canal and
surrounding tissues more than the space behind the eardrum (middle ear). There
may be redness and swelling on the outside of the ear.
Infection in the bone behind the ear (mastoiditis) is a rare problem
that may be associated with an ear infection. Symptoms of mastoiditis may
develop 10 to 14 days after an ear infection and include:
- Redness and swelling on the outside of the
ear.
- Pain behind the ear.
- Fever.
- Drainage
from the ear.
