Ear Fullness: Causes of a Plugged Ear and How to Clear It

Why your ear feels full

The middle ear is an air-filled space behind the eardrum. A narrow channel, the Eustachian tube, links it to the back of the nose. It opens briefly when you swallow or yawn to keep the air pressure equal on both sides of the eardrum. If the tube does not open properly, pressure builds or drops, and the eardrum is pushed or pulled. That stretch causes a full, blocked feeling and muffled hearing. Blockage in the ear canal (such as wax) or problems in the inner ear can cause a similar feeling.

Common causes of ear fullness

Eustachian tube dysfunction

Eustachian tube dysfunction is the most common cause. Swelling from a cold, sinus infection, allergies or smoke stops the tube opening normally. You may hear crackling or popping, especially when swallowing, and hearing can feel muffled. It usually settles within 1 to 2 weeks as the cold or allergy improves.

Earwax buildup

Wax normally works its way out of the ear. It can build up and block the canal, especially in people who use cotton swabs, earbuds or hearing aids, and in older adults. Fullness and muffled hearing often come on suddenly after showering or swimming, when water makes the wax swell.

Fluid behind the eardrum

After an ear infection, or with persistent tube problems, fluid can stay in the middle ear for weeks. This is called otitis media with effusion. It is very common in young children and causes muffled hearing without pain or fever. Most cases clear within 3 months.

Air travel, driving in mountains and diving

Ear barotrauma happens when outside pressure changes faster than the Eustachian tube can equalize, usually during plane descent or diving. It causes fullness, pain and muffled hearing, sometimes with a small bleed behind the eardrum.

Middle ear infection

An acute middle ear infection causes fullness with pain, fever and sometimes discharge if the eardrum bursts.

Less common causes

• Swimmer's ear (otitis externa): an infection of the ear canal, with pain when the outer ear is pulled, itching and discharge.
• Ménière's disease: attacks of fullness, roaring tinnitus, fluctuating hearing loss and spinning vertigo lasting 20 minutes to hours, usually in one ear.
• Sudden sensorineural hearing loss: sudden hearing loss in one ear, often first noticed as fullness. It is frequently mistaken for wax or fluid. Steroid treatment works best when started within 2 weeks, ideally within days.
• Jaw joint (TMJ) problems: the jaw joint sits next to the ear canal, so TMJ disorders can cause ear fullness, pain and ringing with jaw clicking or teeth grinding.
• Patulous Eustachian tube: the tube stays open. Your own voice and breathing sound loud in the ear. It is often linked to rapid weight loss and improves when lying down.
• Acoustic neuroma: a rare benign tumor causing slowly progressive one-sided hearing loss, tinnitus and fullness.
• Nasopharyngeal tumors: rarely, persistent fluid in one ear in an adult can be caused by a growth at the back of the nose, which is why one-sided fluid in adults is checked.

Ear fullness in one ear vs both

How doctors find the cause

A clinician will look in your ear with an otoscope to check for wax, infection, a retracted eardrum or fluid. A quick tuning fork test helps separate blockage from inner ear hearing loss. Tympanometry measures how the eardrum moves and shows fluid or negative pressure. A hearing test (audiogram) is needed for any persistent fullness or suspected sudden hearing loss. An MRI is arranged for unexplained one-sided hearing loss.

How to clear a plugged ear

For pressure and Eustachian tube problems

• Swallow, yawn or chew gum. These open the Eustachian tube.
• Gentle autoinflation: pinch your nose, close your mouth and blow very gently, as if blowing up a balloon, until you feel a pop. Do not blow hard, and avoid this with a heavy cold.
• Nasal saline rinses and, if allergies are the cause, a steroid nasal spray used daily for several weeks.
• Decongestant nasal sprays for no more than 3 days. Oral decongestants are not suitable for people with high blood pressure or heart problems.
• During flights: stay awake for descent, swallow and yawn often. Children can suck on a bottle or pacifier.

For earwax

• Use over-the-counter earwax softening drops or a few drops of mineral oil or olive oil for several days.
• Do not use cotton swabs, ear candles or objects in the ear. They push wax deeper and can injure the eardrum.
• Do not irrigate the ear if you have had a perforated eardrum, ear surgery, or ear pain or discharge.
• A clinician can remove stubborn wax by microsuction, irrigation or instruments.

Medical treatments

• Antibiotics for bacterial ear infections when needed
• Steroids for sudden hearing loss
• Ear tubes (grommets) for persistent fluid causing hearing loss, especially in children
• Balloon dilation of the Eustachian tube in selected adults with long-term dysfunction
• Treatment of the jaw joint, such as a night guard, for TMJ causes

Frequently asked questions

Why does my ear feel full but not hurt?

Painless fullness is usually caused by Eustachian tube dysfunction after a cold or allergies, earwax, or fluid behind the eardrum. These often clear on their own. However, sudden fullness with hearing loss in one ear without a cold or wax can be sudden hearing loss, which needs prompt treatment.

How do I unclog my ear?

Try swallowing, yawning, chewing gum or gentle autoinflation by blowing softly against a pinched nose. Use a saline rinse or steroid spray for congestion. For earwax, use softening drops for a few days. Never put cotton swabs or objects in the ear. See a doctor if it does not clear.

How long does ear fullness last after a cold?

Ear fullness from a cold usually improves within 1 to 2 weeks as the swelling in the nose and Eustachian tube settles. Fluid behind the eardrum can take several weeks to clear. See a doctor if fullness or muffled hearing lasts more than 3 weeks.

Can sinus problems cause ear fullness?

Yes. Sinus infections and nasal allergies cause swelling around the openings of the Eustachian tubes at the back of the nose. The tubes cannot equalize pressure, so the ears feel full and pop or crackle. Treating the sinus congestion usually relieves the ear symptoms.

Is ear fullness a sign of something serious?

Usually not. Most cases come from colds, allergies, wax or flying. It is more concerning when it comes with sudden hearing loss in one ear, severe vertigo, facial weakness, high fever or severe pain. Persistent fullness in one ear in an adult should also be checked.