
Swollen ear: causes, symptoms and when to get checked
A swollen ear can be uncomfortable and concerning, especially if it comes with pain, redness, or changes to your hearing. In many cases, swelling is caused by irritation or infection in the outer ear, but it can also result from an allergic reaction or injury.
At Leightons, our experienced audiologists can help identify what’s behind the swelling and guide you to safe, effective care - so you can feel comfortable and confident again.
What causes a swollen ear?
Swelling occurs when tissues in or around the ear become inflamed. This may happen in the outer ear (the visible part or ear canal) or, more rarely, within the middle ear behind the eardrum.
Inflammation is your body’s natural response to irritation, infection, or trauma. Understanding the cause is the first step to finding relief.
Common causes of ear swelling
A swollen ear can have several different causes, including:
- Outer ear infection (otitis externa): Sometimes called swimmer’s ear, this infection develops when bacteria or fungi grow in the ear canal, causing redness, swelling, and itching.
- Ear wax blockage: Excess wax can trap moisture and irritate the ear canal.
- Allergic reaction: Hair products, hearing aids, or jewellery may cause local irritation and swelling.
- Skin conditions: Eczema or dermatitis around the ear can lead to itching and mild inflammation.
- Injury or trauma: Scratching or inserting objects like cotton buds can damage the delicate skin in the ear.
- Insect bites or piercings: The ear’s exposed position makes it sensitive to small injuries or allergic reactions.
Symptoms to watch for
Swelling is often accompanied by other signs that can help identify the cause. These may include:
- Redness or warmth in or around the ear
- Pain or tenderness
- Itching or dryness
- Fluid, wax, or discharge
- A feeling of fullness or blockage
- Temporary hearing loss
If swelling continues for more than a couple of days or worsens, it’s best to have your ears examined by a professional.
When swelling could be serious
Most mild swelling will settle on its own, but sometimes it can indicate an infection that needs treatment. Seek professional help if you notice:
- Severe or spreading pain
- Thick or smelly discharge
- Fever or feeling unwell
- Swelling extending down the neck or around the face
- Changes to hearing or balance
Leightons’ audiologists can examine your ears safely and identify whether the swelling is due to infection, blockage, or irritation - ensuring you get the right care quickly.
Safe ways to relieve ear swelling
If your ear feels swollen or sore, try these gentle self-care steps:
- Keep ears dry: Avoid swimming or getting water in your ears while they heal.
- Apply a cool compress: This can reduce discomfort and inflammation.
- Avoid scratching or inserting objects: This can worsen irritation or cause infection.
- Use pain relief if needed: Over-the-counter painkillers can ease discomfort.
- Avoid using ear drops unless prescribed: Some drops can irritate inflamed skin if used incorrectly.
If swelling or pain persists, it’s time for a professional assessment.
How Leightons can help
Our caring audiologists offer gentle, professional ear care to identify and resolve the cause of ear swelling. During your appointment, we will:
- Examine the ear using specialist equipment
- Check for wax build-up, infection, or inflammation
- Perform microsuction to remove any excess wax safely
- Offer clear guidance on next steps or GP referral if needed
Leightons provides a calm, comfortable environment and the reassurance that your ears are in expert hands.
Preventing ear swelling
A few simple habits can help keep your ears healthy and prevent future swelling:
- Avoid inserting cotton buds or objects into your ears
- Dry your ears gently after swimming or bathing
- Keep hearing aids and earphones clean
- Protect ears from extreme temperatures and irritants
- Book regular ear health checks if you’re prone to irritation or wax build-up




