ear on one side

Overview

Ear pain on one side means you feel discomfort, soreness, or a dull ache in or around just one of your ears. It can happen for many reasons, from an infection in the eardrum area to pressure changes or even a problem in your jaw. In most cases, it is not serious and improves on its own, but you should check with a healthcare professional if the pain is severe or does not go away.

Yes, ear pain on one side is very common. Many people experience it at least once, especially during or after a cold or a flight.

It can affect anyone at any age, but it is most common in young children (especially under age 5), people who swim often, and adults with sinus problems or allergies.

Symptoms

Common symptoms

• A dull, sharp, or burning pain in one ear
• A feeling of fullness or pressure in the ear
• Muffled hearing on the affected side
• Warmth or redness around the ear
• Mild fluid or discharge from the ear
• Low-grade fever (usually less than 38.3°C or 101°F)

Symptoms in children

• Pulling or tugging at the affected ear
• Fussiness, crying, or irritability
• Difficulty sleeping
• Disinterest in feeding or eating
• Fever, sometimes high

Symptoms in older adults

• Milder pain that may be less noticeable
• Increased difficulty hearing
• Feeling dizzy or off-balance
• Less fever than younger people, but a sense of unwellness

Causes

Main causes

• Middle ear infection (otitis media) – inflammation of the space behind the eardrum, often after a cold
• Outer ear infection (swimmer's ear) – caused by water trapped in the ear canal
• Eustachian tube dysfunction – the tube that drains fluid from the middle ear becomes blocked
• A build-up of earwax pressing against the eardrum
• A foreign object, such as a cotton bud tip or insect, stuck in the ear canal
• Rapid changes in air pressure (such as during takeoff or landing in an airplane)
• Referred pain from the teeth, jaw joint, throat, or sinuses – the cause is not in the ear itself

Risk factors

• Being a child, especially in group childcare or schools
• Frequent swimming without proper ear drying
• Cold, flu, or sinus infection
• Allergies or irritants like tobacco smoke
• Using cotton swabs in the ear, which can push wax deeper
• A history of ear infections or a family history of them

When to see a doctor

See a doctor urgently if:

• If you or your child have any of the emergency symptoms listed above
• If the ear pain follows an injury to the head or ear
• If you notice sudden hearing loss or a sudden ringing in one ear

Book a routine appointment if:

• If the pain lasts more than 2 or 3 days
• If you have a fever above 38°C (100.4°F) that does not come down
• If you have frequent ear infections or the pain keeps coming back
• If you have a weakened immune system or a chronic medical condition like diabetes

Diagnosis

A doctor will usually ask about your symptoms and any recent infections or activities. Then they will look inside your ear using a special instrument called an otoscope. In some cases, they may use a pneumatic otoscope to blow a gentle puff of air against the eardrum to check how it moves.

Tests that may be done

• Otoscope exam – to inspect the ear canal and eardrum
• Tympanometry – a small probe to measure how well the eardrum moves
• A hearing test (audiometry) if hearing loss is suspected
• A tap test or pressure test if airplane ear or pressure damage is possible

What to expect at your appointment

The examination is usually quick and painless. Your doctor may ask you to tilt your head and keep still for a few moments. If you have ear discharge, a small swab may be taken to check for infection. You should receive a clear explanation of what they found and what can help.

Treatment

Treatment depends on the cause. Mild ear pain, especially from a cold, often settles on its own. If a bacterial infection is present, your doctor may prescribe medication, but not all ear infections need antibiotics. For pain, you can ask a pharmacist about age-appropriate pain relief. Always follow your doctor's or pharmacist's advice.

Self-care at home

• Place a warm, not hot, cloth or a warm water bottle wrapped in a towel against the outside of the ear
• Rest upright, not lying flat, to help fluid drain from the ear
• Keep the ear dry – avoid swimming and be careful when showering
• Chew gum or swallow frequently during flights or mountain driving to equalize pressure
• Avoid putting anything inside the ear, including cotton swabs or eardrops unless a doctor recommends them

Medical treatments

For a middle ear infection, your doctor may prescribe antibiotics if the infection is bacterial. For an outer ear infection (swimmer's ear), medicated ear drops may be recommended. If fluid stays behind the eardrum or you get repeat infections, your doctor might suggest decongestants or medicines that reduce inflammation, but only after a proper assessment. Always complete any prescribed course as directed.

When is surgery considered?

Surgery is rarely needed. If ear infections keep coming back or fluid in the middle ear causes significant hearing loss, a small tube may be placed in the eardrum to keep it drained. This is more common in young children. Otherwise, surgery is reserved for rare complications or a burst eardrum that does not heal.

Living with this condition

While you have ear pain, try to protect the ear from cold wind and water. If you feel dizzy, get up slowly from sitting or lying. If you notice hearing changes, avoid loud noise and use caution with headphones. Keep the ear clean and dry, but never insert anything into your ear canal.

Lifestyle tips

• Stay well hydrated
• Avoid smoking and exposure to second-hand smoke
• Manage allergies with the help of a doctor
• If you swim, wear a well-fitting swim cap or use a custom-fitted ear plug to keep water out

Diet and exercise

A moderate diet with plenty of fluids can help your body fight infection. You may exercise gently, but avoid swimming or heavy activities that could cause pressure changes in the ear until the pain improves. If you feel dizzy, rest until it passes.

Mental health and emotional wellbeing

Ear pain can be uncomfortable and disruptive, and if it lasts, it may cause frustration, irritability, or worry. These feelings are normal. Talk to your doctor if pain or hearing difficulties are affecting your mood or daily life, and remember that most ear problems improve with time.

Prevention

Many causes of ear pain can be prevented. Keeping the ears dry, not using cotton swabs, treating colds and allergies promptly, and avoiding smoke all reduce the risk. For babies, breastfeeding (if possible) and avoiding bottle propping can lower the risk of ear infections.

Vaccines

Vaccinations against the flu and pneumococcal disease can help prevent some ear infections. Your doctor or a travel clinic can tell you which vaccines are recommended for your age and health.

Screening programmes

There is no routine screening for ear pain, but children who have repeated ear infections may have regular hearing checks. If you have persistent hearing symptoms, a hearing test can help identify any changes.

Complications

If left untreated

• A collection of fluid behind the eardrum can last for several weeks and cause mild hearing loss
• A burst eardrum may heal on its own but can leave a scar or a small hole
• Rarely, infection can spread to the bone behind the ear (mastoiditis) or, even more rarely, to the brain

Long-term outlook

The outlook is very good. Most ear pain clears up within a few days, and even infections improve with proper treatment. Serious complications are rare, especially if you see a doctor when symptoms are severe or persistent. With the right care, hearing usually returns to normal.

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