USF-COM Department of Family Medicine

Patient Education Information on...

Ear infection

by Kristi Fitzmorris, Class of 1999

  • What is an ear infection ?
  • How common is it ?
  • What causes it ?
  • How can I tell if my child has an ear infection ?
  • How can my doctor tell if my child has an ear infection ?
  • How are ear infections treated ?
  • What can I do to help prevent ear infections ?
  • What are some of the complications of ear infections ?
  • Websites for more information on otitis media
  • Index of Patient Education Topics

    What is an ear infection?

    An ear infection is an inflamed or swollen middle ear that is usually caused by a build up of fluid behind the eardrum.  Another name for an ear infection is otitis media.  Some people refer to this problem as “glue ear”.

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    How common is it ?

    Ear infections occur most commonly in kids.  It is the second most common health problem in children.  Fifty percent of children have one ear infection by the time they are one year old.  Five million school days are missed each year because of ear infections.

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    What causes it ?

    Ear infections usually start during or after a cold.  Bacteria or viruses enter the nose or the throat and travel to the middle ear through a tube in the back of the nose (Eustachian tube.)  This causes the tube to get blocked, which can lead to infection.

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    How can I tell if my child has an ear infection ?

     Symptoms include the following: earache, ringing in the ears, fever, tugging or rubbing the ears, problems hearing, and draining fluid or pus from the ear.  Call your doctor if your child has any of these symptoms.

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    How can my doctor tell if my child has an ear infection ?

    Your doctor will look in both of the child’s ears using an instrument called an otoscope.  Your child will feel the instrument in the ear, but it does not hurt.  The doctor may see a red, bulging eardrum, usually with fluid behind the eardrum.  The doctor will also check to see if the eardrum moves by blowing a puff of air in the child’s ear.  If there is fluid behind the eardrum, it will not move as much as it normally should.

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    How are ear infections treated ?

    The doctor may prescribe antibiotics to help fight the infection.  These will also help to make the pain go away.  Even though your child may feel better in 2-3 days, the infection needs more time to go away.  Be sure to take the antibiotics for the full time.  Your child may develop diarrhea or a rash from the antibiotics.

    Acetaminophen, or Tylenol, may also be prescribed to help with pain and fever.  (Do not use aspirin in children under 21 years old because it can cause a rare, but serious, illness in children.)

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    What can I do to help prevent ear infections ?

    Nothing can prevent all ear infections, but there are some things you can do to help decrease the chances of your child getting an ear infection. Return to top of page

    What are some complications of ear infections ?

    Complications are infrequent with fast treatment, but some of the more common problems that may occur include: Return to top of page

    Websites for more information on otitis media