Patients with chronic otitis externa typically present with symptoms such as itching, pain, and a feeling of fullness in the ear. There may also be discharge from the ear, which can be clear, yellow, or even bloody. Hearing loss is another common symptom, often due to swelling or debris blocking the ear canal. The skin of the ear canal may appear red and swollen upon examination.

Diagnosing chronic otitis externa involves a thorough clinical evaluation. A healthcare provider will examine the ear canal using an otoscope, a tool that provides a clear view of the ear's interior. They may also take a sample of any discharge to identify the presence of bacteria or fungi. In some cases, imaging studies like a CT scan may be necessary to assess the extent of the inflammation and rule out other conditions.

Treatment for chronic otitis externa focuses on alleviating symptoms and addressing the underlying cause. This may include cleaning the ear canal to remove debris and applying topical medications such as antibiotics or antifungal agents. In cases where inflammation is severe, corticosteroid drops may be prescribed. Patients are advised to keep the ear dry and avoid inserting objects into the ear canal.

With appropriate treatment, the prognosis for chronic otitis externa is generally good. Most patients experience significant relief from symptoms, although some may have recurrent episodes. Long-term management may be necessary for individuals with underlying conditions that predispose them to ear infections.

Chronic otitis externa can be caused by a variety of factors. Bacterial infections, particularly by Pseudomonas aeruginosa and Staphylococcus aureus, are common culprits. Fungal infections, allergies, and skin conditions like eczema or psoriasis can also contribute. Repeated exposure to water, trauma from cleaning the ear, and the use of hearing aids or earplugs can exacerbate the condition.

Chronic otitis externa affects individuals of all ages but is more prevalent in adults. It is particularly common in those who frequently swim or engage in water sports. The condition is also more likely to occur in warm, humid climates where bacteria and fungi thrive.

The pathophysiology of chronic otitis externa involves persistent inflammation of the skin lining the ear canal. This inflammation can lead to thickening of the skin, narrowing of the ear canal, and increased susceptibility to infections. The presence of moisture and debris creates an environment conducive to bacterial and fungal growth, perpetuating the cycle of inflammation.

Preventing chronic otitis externa involves minimizing risk factors. Keeping the ears dry, especially after swimming or bathing, is crucial. Using earplugs or a swim cap can help. Avoid inserting objects into the ear canal, including cotton swabs, which can cause trauma. Maintaining good ear hygiene and managing underlying skin conditions can also reduce the risk of chronic otitis externa.

Chronic otitis externa is a long-lasting inflammation of the ear canal that can cause discomfort and hearing issues. It is often caused by bacterial or fungal infections, with symptoms including itching, pain, and discharge. Diagnosis involves clinical examination and sometimes laboratory tests. Treatment focuses on symptom relief and addressing the underlying cause, with a generally good prognosis. Preventive measures can help reduce the risk of recurrence.

For patients, understanding chronic otitis externa is key to managing the condition effectively. It is important to follow treatment plans as prescribed by healthcare providers and to take preventive steps to avoid future episodes. Keeping the ears dry, avoiding ear canal trauma, and maintaining good ear hygiene are essential practices. If symptoms persist or worsen, patients should seek further medical evaluation to ensure proper management.