Middle Ear Infections

In the early stages, middle ear infections can be very painful. Sometimes, associated problems linger for months and affect hearing. But, despite their potential severity, middle ear problems respond well to treatment.

About the middle ear

What are middle ear infections?

Middle ear infections occur behind the eardrum (the thin sheet of tissue that passes sound waves between the outer and middle ear). These infections are usually due to bacteria or viruses, which are often related to a recent cold or allergy problem. In many cases, both ears are affected. Middle ear infections are most common in young children, whose ear anatomy is not yet fully developed. Children under age 5, boys, bottle-fed infants, and children in daycare run the greatest risk of infection. Although much less common, middle ear infections can also occur in older children and adults.

Are these infections serious?

Middle ear infections can be painful and they tend to disrupt sleep- for you as well as for your child. But this isn't the full extent of the problem. Middle ear infections can also limit the eardrum's flexibility, reducing your child's ability to hear. This could make it harder for your child to learn to talk. Depending on when the hearing problem starts and how long it lasts, your child's learning ability could be affected.

What causes Middle Ear Fluid?

Here are some things that may cause middle ear fluid to happen in your child:

There is no one cause for middle ear fluid.  Often, your child's health care provider will not know what caused the middle ear fluid.

How can Middle Ear Fluid be prevented?

Recent studies show that children who live with smokers and who spend time in group child care have more ear infections.

Because some children who have middle ear infections later get middle ear fluid, you might help prevent middle ear fluid by:

Treatment restores health and hearing

Middle ear infections can be treated, but over-the-counter remedies aren't the answer. Middle ear problems need a doctor's case. Special medications are often used to cure or prevent infection. In some cases, the doctor may suggest a simple surgical procedure to control future problems.

Medical Care

The doctor examines your child to diagnose the cause of his or her symptoms. If a middle ear infection is present, your child's age and the number and severity of infections all influence treatment decisions. Your child's treatment plan may include using antibiotics and finding ways to reduce the risk of future infections.

Surgical Care

If your child has ongoing or frequent middle ear problems, the doctor may recommend surgery to stop discomfort and correct any hearing loss. The procedure used to treat middle ear problems is quick and effective. In fact, children can almost always be treated and released the same day (outpatient surgery).

Making a diagnosis

If an ear problem seems likely, the doctor will examine your child and view both eardrums. Tests may be done to check the condition of the middle ear or to measure any hearing loss. Treatment recommendations will be based on results of the exam and any tests, as well as your child's health history.

Examining your child

The physical exam helps the doctor determine the specific type of ear problem affecting your child. The exam also helps identify any respiratory illnesses, such as bronchitis, pneumonia, or strep throat. During the exam, the doctor listens to your child's heart and lungs and looks in the ears, nose, and throat. If your child's tonsils (masses of tissue near the back of the throat) are greatly enlarged, the doctor may check the adenoids (pads of tissue in the upper part of the throat) as well.

Viewing the eardrum

If the doctor suspects a middle ear problem, pneumatic otoscopy is almost always performed. Using a special device (otoscope) to look down the ear canal, the doctor views the eardrum and any fluid behind it. Once in place, the device can also be used to change the amount of air pressure in the canal, so the doctor can see how flexible the eardrum is. Reduced eardrum flexibility is often linked with fluid buildup. Pneumatic otoscopy takes just seconds and rarely causes discomfort.

If adenoids are infected

The adenoids are located near the site where the Eustachian tube opens into the throat. Their job is to help filter inhaled germs before they reach the lungs. If the adenoids themselves get infected, they may swell. After repeated infections, the adenoids may remain enlarged, blocking the Eustachian tube opening. In some cases, germs stopped by the adenoids may enter the Eustachian tube and spread to the middle ear. Adenoid-related ear problems happen more often in older children and adults.

Checking the middle ear

If your child can sit still for several minutes, the eardrum and middle ear may be tested to learn how well they are working. Tympanometry and acoustic reflex testing both use a probe to send air and sound through the outer ear. Tympanometry measures the amount of sound bouncing off the eardrum. The purpose is to evaluate the eardrum's flexibility and its response to loud sounds.

Identifying hearing loss

To learn if a young child has trouble hearing, the doctor or a hearing specialist may talk or play with the youngster. The child's response to changes in the speaker's voice helps identify hearing loss. Older children and adults may be given an audiometric test. In some cases, young children with chronic fluid may also be tested. During audiometry, sound waves are sent into the outer ear or vibrations are passed through the bones behind the ear. The listener signals every time he or she hears a tone. Test results are used to identify the types of sounds that can and cannot be heard.

Other tests

If the doctor suspects a problem with the structure of your child's ear, a special test may be done. A computed tomography (CT) scan shows the images of the middle ear bones or bone surrounding the ear. Magnetic resonance imaging (MRI) is used to check for soft tissue problems, such as nerve damage or tumors. To identify an inner ear problem, a sophisticated hearing test may be done to pinpoint any problem with the nerve pathways that send signals to the brain. These tests take time to perform, but they do not cause pain.

Medical care comes first

Most children have had at least one middle ear infection by the age of 2. Treatment may depend on whether the problem is acute or chronic, as well as how often it comes back and how long it lasts. The doctor may prescribe medication and then watch to see how healing progresses. For many children, taking antibiotics and reducing risk factors are all the treatment that's needed.

Watching and waiting

If this is your child's first or second acute infection, the doctor may prescribe antibiotics and suggest a period of "watchful waiting". During this time, your child's ears will probably be retested to look for any eardrum or hearing changes. In most cases, fluid outlasts the acute infection by two or three weeks. If the fluid buildup becomes chronic, however, the doctor may watch your child for up to several months. Why? Because even chronic fluid may go away with time - provided that no new infection occurs.

Reducing risk factors

Some behaviors or surroundings increase your child's risk of ear infection. Reducing such risk factors can be a benefit at any point in treatment. The tips below may help:

  • If your child goes to group daycare, he or she runs a greater risk of getting colds or flu. Help prevent these illnesses by teaching your child to wash his or her hands often.
  • If food allergies are a problem, identify the food that triggers the reaction and help your child avoid it. In some children, eating or drinking dairy products causes tissues around the Eustachian tube to swell. This may make a blockage more likely.

Using antibiotics

Antibiotics may be used as a short- or long-term treatment, depending on whether the ear problem is acute or chronic. Either way, antibiotics will be effective only in treating bacterial infections. For an acute middle ear infection, the doctor may prescribe 7 to 14 days of antibiotic treatment. In a case of chronic fluid, the doctor may suggest using antibiotics to prevent any new infection while waiting for the fluid to go away. Such antibiotic use may last weeks or months.

Although most children can take antibiotics without problems, side effects can occur. Some children get stomach upset, including vomiting or diarrhea. Some get rashes, hives, puffy eyes, or yeast infections. In rare cases, an allergic reaction may cause breathing problems that require immediate medical care. If your child shows any type of reaction during antibiotic use, call the doctor.

Tips on taking antibiotics

To be effective, antibiotics must be taken correctly. Follow these tips for the best results:

If your child needs surgery

Limiting future problems

Most children outgrow middle ear problems by about age 8. Until then, however, you can reduce your child's risk of middle ear infection by following these tips:

  • Teach your child good habits that help prevent colds, such as washing hands often and using tissues instead of handkerchiefs.
  • Teach your child to drink only from his or her own container.
  • Keep your child away from secondhand smoke.
  • Follow the doctor's advice about keeping your child's ears dry.
  • Call the doctor if you suspect your child has an ear problem. Don't wait. Delaying treatment could affect hearing!

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