Acute Otitis Externa (AOE)

11 min read

Acute Otitis Externa (AOE) is an infection of the outer ear canal, which is the tube that connects the outer ear to the eardrum. It is also known as swimmer's ear. AOE is caused by bacteria or fungi that enter the ear canal and cause inflammation. It is most common in warm, humid climates and is often seen in people who swim frequently.

Causes of AOE

AOE is caused by bacteria or fungi that enter the ear canal. These organisms can be found in water, soil, and other sources. They can also be spread through contact with contaminated objects, such as towels or headphones. People who swim frequently are at an increased risk of developing AOE, as the warm, humid environment of the ear canal can provide an ideal environment for the growth of these organisms.

Diagnosis of AOE

AOE is usually diagnosed based on a physical examination of the ear canal. The doctor may use an otoscope, a device with a light and magnifying lens, to look inside the ear. They may also take a swab of the ear canal to test for bacteria or fungi.

Complications of AOE

If left untreated, AOE can lead to complications such as hearing loss, infection of the bone behind the ear, and even meningitis. It is important to seek medical attention if you suspect you have AOE, as it can lead to serious complications if not treated promptly.

Prevention of AOE

The best way to prevent AOE is to avoid activities that can introduce bacteria or fungi into the ear canal. This includes avoiding swimming in contaminated water, using ear plugs when swimming, and avoiding the use of cotton swabs or other objects in the ear canal. It is also important to keep the ear canal dry, as moisture can provide an ideal environment for the growth of bacteria and fungi.

Symptoms

Common Symptoms of AOE

  • Pain in the ear, which may be severe
  • Itching in the ear
  • Redness and swelling of the ear canal
  • Fluid drainage from the ear
  • Hearing loss
  • Fever
  • Headache

When to See a Doctor

If you experience any of the above symptoms, it is important to see a doctor as soon as possible. A doctor can diagnose AOE and prescribe the appropriate treatment. If left untreated, AOE can lead to more serious complications, such as hearing loss or infection of the bone behind the ear.

Treatment for AOE

Treatment for AOE usually involves antibiotics, either in the form of ear drops or oral medication. In some cases, a doctor may also recommend using a steroid ear drop to reduce inflammation. It is important to follow the doctor’s instructions carefully and finish the entire course of antibiotics, even if the symptoms have improved.

Preventing AOE

The best way to prevent AOE is to keep the ears dry. This can be done by avoiding swimming in polluted water, using ear plugs when swimming, and drying the ears thoroughly after swimming or showering. It is also important to avoid inserting objects into the ear, as this can damage the ear canal and increase the risk of infection.

Take the Acute Otitis Externa (AOE) Assessment

Causes

Bacterial Causes

Bacteria are the most common cause of AOE. Bacteria can enter the ear canal through a break in the skin, such as a scratch or cut, or through water that has been contaminated with bacteria. Bacteria can also be introduced to the ear canal through the use of cotton swabs, hearing aids, or other objects that are inserted into the ear.

Fungal Causes

Fungi can also cause AOE. Fungi can enter the ear canal through a break in the skin, such as a scratch or cut, or through water that has been contaminated with fungi. Fungi can also be introduced to the ear canal through the use of hearing aids, or other objects that are inserted into the ear.

Irritants

Irritants, such as water, soap, shampoo, hairspray, and other chemicals, can also cause AOE. These irritants can enter the ear canal through a break in the skin, such as a scratch or cut, or through water that has been contaminated with irritants. Irritants can also be introduced to the ear canal through the use of hearing aids, or other objects that are inserted into the ear.

Other Causes

Other causes of AOE include allergies, trauma to the ear canal, and certain medical conditions. Allergies can cause inflammation of the ear canal, which can lead to AOE. Trauma to the ear canal can also cause AOE, such as when a foreign object is inserted into the ear. Certain medical conditions, such as diabetes, can also increase the risk of developing AOE.

Getting a Diagnosis

Physical Examination

During a physical examination, the doctor will look inside the ear canal with an otoscope, a device that magnifies the ear canal. The doctor will look for signs of inflammation, such as redness, swelling, and discharge. The doctor may also take a swab of the ear canal to test for bacteria or fungi.

Medical History

The doctor will also ask the patient about their medical history, including any recent illnesses, allergies, or medications they are taking. This information can help the doctor determine the cause of the AOE and the best treatment plan.

Treatment

Treatment for AOE typically includes antibiotics or antifungal medications, as well as ear drops to reduce inflammation and pain. In some cases, the doctor may also recommend a steroid injection to reduce inflammation. It is important to follow the doctor's instructions for treatment to ensure the infection is properly treated.

Questions for Your Doctor

Symptoms

Be sure to tell your doctor about any symptoms you are experiencing, such as pain, itching, or discharge. It is also important to tell your doctor if you have any other medical conditions, such as diabetes, that may affect your treatment.

Diagnosis

Your doctor may need to perform a physical examination of your ear to diagnose AOE. They may also take a sample of the discharge from your ear to test for bacteria or fungi. Your doctor may also order imaging tests, such as an MRI or CT scan, to look for any underlying conditions that may be causing your symptoms.

Treatment

Your doctor may prescribe antibiotics or antifungal medications to treat AOE. They may also recommend over-the-counter pain relievers or anti-itch medications. In some cases, your doctor may recommend surgery to remove any debris or fluid from the ear canal.

Prevention

Your doctor may recommend ways to prevent AOE, such as avoiding swimming in contaminated water, using ear plugs when swimming, and avoiding using cotton swabs in the ear canal. They may also recommend using a diluted vinegar solution to clean the ear canal.

Follow-up

Be sure to ask your doctor about any follow-up care you may need. They may recommend regular check-ups or tests to monitor your condition. They may also recommend lifestyle changes, such as avoiding certain activities or using protective gear, to help prevent AOE from recurring.

Treatment

Antibiotics

Antibiotics are the most common treatment for AOE. They can be taken orally or applied directly to the ear canal. Oral antibiotics are usually prescribed for more severe cases, while topical antibiotics are used for milder cases. It is important to finish the entire course of antibiotics, even if the symptoms have improved.

Ear Drops

Ear drops are another common treatment for AOE. They can help reduce inflammation and pain, as well as kill the bacteria or fungi causing the infection. Ear drops are usually applied several times a day for several days. It is important to follow the instructions on the package carefully.

Pain Relievers

Pain relievers such as ibuprofen or acetaminophen can help reduce the pain and discomfort associated with AOE. It is important to follow the instructions on the package carefully and not take more than the recommended dose.

Home Remedies

There are also several home remedies that can help relieve the symptoms of AOE. These include applying a warm compress to the affected area, using a mixture of hydrogen peroxide and water to flush out the ear canal, and using over-the-counter ear drops. It is important to talk to your doctor before trying any home remedies.

Prevention

The best way to prevent AOE is to keep the ear canal clean and dry. This can be done by avoiding swimming in polluted water, using ear plugs when swimming, and avoiding the use of cotton swabs or other objects in the ear canal. It is also important to treat any underlying medical conditions, such as allergies or diabetes, that may increase the risk of developing AOE.

Drugs & Medications

Drugs for Acute Otitis Externa (AOE)

Treatment for AOE usually involves antibiotics, either taken orally or applied directly to the ear. Oral antibiotics are usually prescribed for more severe cases, while topical antibiotics are used for milder cases. In some cases, a combination of both may be used. Other medications that may be prescribed include anti-inflammatory drugs, such as ibuprofen, and antifungal medications, such as clotrimazole.

In addition to medications, other treatments may be recommended, such as keeping the ear dry, using ear drops, and avoiding swimming or other activities that may cause water to enter the ear. Surgery may be necessary in some cases, such as when the infection is severe or does not respond to other treatments.

Conclusion

Acute Otitis Externa (AOE) is an infection of the outer ear canal that is usually caused by bacteria or fungi. Treatment usually involves antibiotics, either taken orally or applied directly to the ear, as well as other medications and treatments. In some cases, surgery may be necessary. It is important to follow the doctor's instructions for treatment to ensure the infection is properly treated.

Diet

Foods to Eat

Eating a healthy, balanced diet is important for overall health and can help reduce the symptoms of AOE. Foods that are high in antioxidants, such as fruits and vegetables, can help reduce inflammation and boost the immune system. Foods that are high in omega-3 fatty acids, such as salmon, tuna, and walnuts, can also help reduce inflammation. Additionally, probiotic-rich foods, such as yogurt and kefir, can help restore the balance of beneficial bacteria in the gut, which can help reduce inflammation.

Foods to Avoid

Certain foods can worsen the symptoms of AOE and should be avoided. Foods that are high in sugar and refined carbohydrates can increase inflammation and weaken the immune system. Additionally, foods that are high in saturated fat, such as red meat and processed foods, can also increase inflammation. Alcohol and caffeine should also be avoided, as they can worsen symptoms.

Conclusion

Making dietary changes can help reduce the symptoms of AOE and speed up recovery. Eating a healthy, balanced diet that is high in antioxidants, omega-3 fatty acids, and probiotics can help reduce inflammation and boost the immune system. Additionally, avoiding foods that are high in sugar, saturated fat, alcohol, and caffeine can help reduce symptoms.

Lifestyle

Keep the Ear Canal Dry

One of the most important lifestyle tips for AOE is to keep the ear canal dry. This means avoiding activities that can cause water to enter the ear canal, such as swimming or showering. If you must get your ears wet, use a cotton ball or earplug to keep the water out. Additionally, avoid using cotton swabs or other objects to clean the ear canal, as this can push bacteria and fungi further into the ear.

Avoid Irritants

Another important lifestyle tip for AOE is to avoid irritants. This includes avoiding products that contain alcohol, hydrogen peroxide, or other harsh chemicals. Additionally, avoid using earphones or earbuds, as these can irritate the ear canal and increase the risk of infection.

Keep the Ear Clean

It is also important to keep the ear clean. This means gently cleaning the outer ear with a damp cloth or cotton ball. Do not insert anything into the ear canal, as this can cause further irritation and increase the risk of infection.

See a Doctor

If you are experiencing symptoms of AOE, it is important to see a doctor. A doctor can diagnose the condition and provide treatment to help reduce the symptoms and prevent further infection.

Conclusion

Acute Otitis Externa (AOE) is a painful infection of the outer ear canal. Fortunately, there are some lifestyle tips that can help reduce the symptoms and prevent further infection. These include keeping the ear canal dry, avoiding irritants, keeping the ear clean, and seeing a doctor if symptoms persist.