Otitis Externa

11 min read

Otitis externa, also known as swimmer's ear, is an infection of the outer ear canal. It 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 swimmers, as the name implies. Otitis externa is usually treated with antibiotics, but it can also be prevented by keeping the ear dry and avoiding swimming in polluted water.

Causes of Otitis Externa

Otitis externa is caused by bacteria or fungi that enter the ear canal. It is most commonly seen in warm, humid climates, as the moist environment is ideal for the growth of bacteria and fungi. Swimming in polluted water can also increase the risk of developing otitis externa, as the bacteria and fungi can enter the ear canal through the water.

Diagnosis of Otitis Externa

Otitis externa is usually diagnosed based on the patient's symptoms and a physical examination of the ear. The doctor may also take a swab of the ear canal to test for bacteria or fungi. In some cases, an imaging test such as an MRI or CT scan may be used to get a better view of the ear canal.

Prevention of Otitis Externa

Otitis externa can be prevented by keeping the ear dry and avoiding swimming in polluted water. It is also important to avoid inserting objects into the ear canal, as this can damage the delicate skin and increase the risk of infection. If you do swim, it is important to dry the ears thoroughly afterwards.

Symptoms

Common Symptoms of Otitis Externa

  • Pain in the ear
  • Itching in the ear
  • Redness in the ear
  • Discharge from the ear
  • Swelling of the ear
  • Tenderness of the ear
  • Hearing loss

When to See a Doctor

If you experience any of the symptoms of otitis externa, it is important to see a doctor as soon as possible. The infection can spread to the surrounding tissue and cause more serious complications if left untreated. Your doctor can diagnose the infection and prescribe the appropriate treatment.

Take the Otitis Externa Assessment

Causes

Trauma

Trauma to the ear canal can cause otitis externa. This can include anything from inserting a cotton swab too far into the ear canal to scratching the ear canal with a fingernail. Trauma can also occur when a foreign object, such as a bug, gets stuck in the ear canal.

Allergies

Allergies can cause inflammation in the ear canal, which can lead to otitis externa. Allergies can be caused by a variety of things, including dust, pollen, and certain foods. Allergies can also be caused by certain medications, such as antibiotics.

Moisture

Moisture in the ear canal can cause otitis externa. This is especially true if the ear canal is not dried properly after swimming or bathing. Moisture can also be caused by sweating, which can lead to an overgrowth of bacteria or fungi in the ear canal.

Skin Conditions

Certain skin conditions, such as eczema and psoriasis, can cause inflammation in the ear canal. This can lead to otitis externa. Skin conditions can also make the ear canal more susceptible to infection.

Chemicals

Exposure to certain chemicals, such as hair dyes and hair sprays, can cause inflammation in the ear canal. This can lead to otitis externa. Chemicals can also irritate the skin in the ear canal, making it more susceptible to infection.

Getting a Diagnosis

Physical Examination

During a physical examination, the doctor will use an otoscope to look inside the ear canal. The doctor may also use a cotton swab to take a sample of the discharge from the ear. This sample can then be tested to determine the type of bacteria or fungus causing the infection.

Symptoms

The most common symptoms of otitis externa include pain, itching, and discharge from the ear. Other symptoms may include redness, swelling, and a feeling of fullness in the ear. In some cases, the patient may also experience fever, headache, and hearing loss.

Treatment

Treatment for otitis externa typically involves the use of antibiotics or antifungal medications. In some cases, the doctor may also recommend the use of ear drops or other topical medications. Surgery may be necessary in severe cases.

Questions for Your Doctor

Symptoms

Describe your symptoms to your doctor. Common symptoms of otitis externa include pain, itching, redness, swelling, and discharge from the ear. You may also experience hearing loss, dizziness, and a feeling of fullness in the ear.

Medical History

Your doctor will want to know your medical history, including any allergies or other medical conditions you may have. Tell your doctor if you have had otitis externa before, or if you have had any other ear infections. Your doctor may also ask about any recent activities that may have caused the infection, such as swimming or using cotton swabs in the ear.

Treatment Options

Your doctor will discuss treatment options with you. Treatment may include antibiotics, antifungal medications, or steroid ear drops. Your doctor may also recommend over-the-counter pain relievers to help with the pain. In some cases, your doctor may recommend surgery to remove the infected tissue.

Follow-up Care

Your doctor may recommend follow-up care to make sure the infection has cleared up. This may include regular check-ups or tests to make sure the infection has not returned. Your doctor may also recommend lifestyle changes to help prevent future infections, such as avoiding swimming or using cotton swabs in the ear.

Conclusion

Otitis externa can be very painful and uncomfortable. If you think you may have otitis externa, it is important to discuss your symptoms with your doctor. Be sure to tell your doctor about your symptoms, medical history, and any recent activities that may have caused the infection. Your doctor will discuss treatment options and follow-up care with you.

Treatment

Antibiotics

Antibiotics are the most common treatment for otitis externa. They can be taken orally or applied directly to the ear canal in the form of drops or ointments. 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, to ensure the infection is completely cleared.

Pain Relief

Pain relief is an important part of treating otitis externa. Over-the-counter pain medications such as ibuprofen or acetaminophen can help to reduce the pain and inflammation. Applying a warm compress to the affected ear can also help to reduce pain and swelling.

Cleaning the Ear Canal

Cleaning the ear canal is an important part of treating otitis externa. This can be done by using a cotton swab to gently remove any debris or wax from the ear canal. It is important to be careful not to push the swab too far into the ear, as this can cause further irritation. It is also important to avoid getting water in the ear canal, as this can worsen the infection.

Prevention

The best way to prevent otitis externa is to keep the ear canal dry. This can be done by using ear plugs when swimming or showering, and avoiding getting water in the ear. It is also important to avoid using cotton swabs or other objects to clean the ear canal, as this can cause irritation and increase the risk of infection.

Drugs & Medications

Antibiotics

Antibiotics are the most common treatment for otitis externa. They work by killing the bacteria that are causing the infection. Common antibiotics used to treat otitis externa include ciprofloxacin, ofloxacin, and amoxicillin. These medications are usually taken orally, but they can also be applied directly to the ear canal.

Antifungal Medications

If the infection is caused by a fungus, antifungal medications may be prescribed. These medications work by killing the fungus that is causing the infection. Common antifungal medications used to treat otitis externa include clotrimazole, miconazole, and nystatin. These medications are usually applied directly to the ear canal.

Corticosteroids

Corticosteroids are drugs that reduce inflammation. They can be used to reduce the swelling and pain associated with otitis externa. Common corticosteroids used to treat otitis externa include hydrocortisone, prednisone, and dexamethasone. These medications are usually applied directly to the ear canal.

Pain Relievers

Pain relievers can be used to reduce the pain associated with otitis externa. Common pain relievers used to treat otitis externa include ibuprofen, acetaminophen, and naproxen. These medications can be taken orally or applied directly to the ear canal.

Conclusion

Otitis externa is a painful infection of the outer ear canal. Treatment usually involves antibiotics, antifungal medications, corticosteroids, and pain relievers. These medications can be taken orally or applied directly to the ear canal. It is important to follow your doctor's instructions when taking any of these medications.

Diet

Foods to Eat

A healthy diet can help reduce the risk of otitis externa. Eating a variety of fruits and vegetables, whole grains, lean proteins, and healthy fats can help boost the immune system and reduce inflammation. Some specific foods that may be beneficial include:

  • Citrus fruits, such as oranges, grapefruits, and lemons
  • Berries, such as blueberries, strawberries, and raspberries
  • Leafy greens, such as spinach, kale, and collard greens
  • Nuts and seeds, such as almonds, walnuts, and flaxseeds
  • Fatty fish, such as salmon, mackerel, and sardines
  • Probiotic-rich foods, such as yogurt, kefir, and sauerkraut

Foods to Avoid

Certain foods may increase the risk of otitis externa. It is best to limit or avoid these foods:

  • Refined carbohydrates, such as white bread, pasta, and pastries
  • Processed meats, such as hot dogs, bacon, and sausage
  • Sugary drinks, such as soda, energy drinks, and fruit juices
  • Fried foods, such as french fries, onion rings, and mozzarella sticks
  • Artificial sweeteners, such as aspartame and sucralose
  • Alcohol and caffeine

Conclusion

Otitis externa is an infection of the outer ear canal. While antibiotics are usually used to treat the infection, certain dietary changes can help reduce the risk of developing otitis externa. Eating a variety of fruits and vegetables, whole grains, lean proteins, and healthy fats can help boost the immune system and reduce inflammation. It is also important to limit or avoid refined carbohydrates, processed meats, sugary drinks, fried foods, artificial sweeteners, alcohol, and caffeine.

Lifestyle

Keep Your Ears Dry

One of the most important lifestyle tips for preventing otitis externa is to keep your ears dry. This means avoiding activities that involve getting your ears wet, such as swimming, showering, or using a hot tub. If you do get your ears wet, make sure to dry them thoroughly with a soft towel. You can also use a hair dryer on the lowest setting to help dry your ears.

Avoid Irritants

Another important lifestyle tip for preventing otitis externa is to avoid irritants. This includes avoiding the use of cotton swabs, which can push wax and debris further into the ear canal. It also means avoiding the use of harsh soaps, shampoos, and other products that can irritate the ear canal. If you do need to clean your ears, use a gentle, non-irritating solution.

Wear Earplugs

If you are going to be in a situation where your ears may be exposed to water, such as swimming or showering, it is important to wear earplugs. This will help keep water out of your ears and reduce the risk of developing otitis externa. Make sure to choose earplugs that are made of a soft, non-irritating material.

See Your Doctor

If you are experiencing any symptoms of otitis externa, such as pain, itching, or discharge, it is important to see your doctor. Your doctor can diagnose the condition and provide treatment to help relieve your symptoms and prevent further complications.

Conclusion

Otitis externa can be a painful and uncomfortable condition, but there are some lifestyle tips that can help reduce the risk of developing it. Keeping your ears dry, avoiding irritants, wearing earplugs, and seeing your doctor if you experience any symptoms can all help prevent otitis externa.