Updated October 2026

Key Takeaway: A clogged ear from a sinus infection happens when swelling blocks the eustachian tube, the channel that balances pressure behind your eardrum. Swallowing, yawning, a gentle Valsalva maneuver and saline spray often help. Most cases clear in one to two weeks. Severe pain, fever, drainage or sudden hearing loss needs an ear, nose and throat doctor (an ENT).

Your sinus infection is finally easing, but one ear still feels like it is packed with cotton. Voices sound far away, your own voice booms inside your head, and every few minutes the ear crackles without quite opening. Clogged ear, sinus infection: the two travel together often, and in most cases the clog is temporary. We sell hearing aids, and we would rather you not buy one for a clogged ear. Muffled hearing from congestion usually lifts when the congestion does. Cleveland Clinic says this kind of blockage usually clears within one to two weeks.

Why a Sinus Infection Clogs Your Ear

A sinus infection clogs your ear by swelling the eustachian tube shut. That tube joins the middle ear, the small air-filled space behind your eardrum, to the back of your throat. The clog is not in your ear canal.

According to Cleveland Clinic, the tube has two jobs. It lets air in and out so the pressure behind your eardrum matches the air around you, and it lets fluid drain out of the middle ear. Every time you swallow or yawn, the tube opens for a moment and does both.

A sinus infection inflames the lining at the back of your nose, right where the tube opens. Swollen tissue and thick mucus squeeze that opening shut. Now the middle ear is sealed off. Your body slowly absorbs the air trapped inside, the pressure drops, and the eardrum gets pulled inward. A stretched eardrum cannot vibrate freely, so sound reaches you muffled, the way Cleveland Clinic describes it: as if you were underwater. If the tube stays shut long enough, fluid can also collect behind the eardrum, which adds to the fullness.

That is why the ear often stays blocked after your nose feels better. The swelling around the tube can take longer to settle than the stuffiness you notice.

What a Clogged Ear Feels Like

Cleveland Clinic lists the common signs of eustachian tube dysfunction, the name doctors use for a blocked or poorly working tube:

• Muffled hearing, the most common symptom, often described as hearing through water

• Fullness or pressure in the ear

• Clicking or popping when you swallow or yawn

• Ear pain, which can range from a dull ache to sharp

• Ringing or other sounds in the ear

• Dizziness or balance trouble in some cases

Some people also hear their own heartbeat more clearly when an ear is blocked. Our post on how to stop a whooshing sound in your ear explains why a blocked ear makes internal sounds louder.

How to Unclog Your Ear at Home

The goal is to coax the eustachian tube open and bring down the swelling around it. Cleveland Clinic and Mayo Clinic describe the Valsalva maneuver, and Cleveland Clinic lists saline spray. Swallowing, yawning, steam and a raised head are common comfort measures for congestion.

Two cautions. Blow gently during the Valsalva maneuver, never hard, because forcing air can hurt an eardrum that is already stretched. And ask a pharmacist or your doctor before taking an oral decongestant. Cleveland Clinic notes that decongestants can ease congestion but can make eustachian tube problems worse in some people.

Leave cotton swabs and ear drops out of it. The blockage sits behind the eardrum, where nothing in the ear canal can reach. Our guide to rubbing alcohol in the ear covers when drying drops help and when to keep liquids out of your ear.

How Long a Clogged Ear Lasts After a Sinus Infection

Cleveland Clinic says eustachian tube dysfunction usually clears within one to two weeks. For most people, the ear opens gradually as the sinus swelling goes down. You may notice it pop open partway, close again, and then clear for good over several days.

A clog can last longer in a few situations:

• Fluid builds up behind the eardrum. Fluid can stay behind the eardrum after the infection clears, so the fullness can linger.

• Allergies keep the lining swollen. If allergy season follows your sinus infection, the tube may stay partly blocked until you treat the allergy.

• The infection spreads to the middle ear. A middle ear infection brings pain and sometimes fever, and it needs a doctor.

Cleveland Clinic also notes that a blockage left untreated can, in rare cases, cause lasting hearing loss or eardrum damage. That is the reason not to wait it out indefinitely.

When to See an ENT

Make an appointment with an ear, nose and throat doctor (an ENT) if:

• The clog lasts more than a couple of weeks, which is Cleveland Clinic's threshold for getting it checked

• Ear pain is severe or keeps getting worse

• You have a fever along with ear pain

• Fluid or pus drains from the ear

• Dizziness or spinning makes it hard to stand or walk

• The ear keeps clogging with every cold or allergy season

Sudden hearing loss is different and urgent. If your hearing drops quickly in one ear, the National Institute on Deafness and Other Communication Disorders says to see a doctor immediately, because treatment works best when it starts early. Do not assume it is just congestion.

An ENT can look at your eardrum, check whether fluid is trapped behind it and test how well the tube is working. If the clog keeps coming back, they can talk through options such as prescription nasal sprays or a procedure to help the tube open.

Your Questions About a Clogged Ear From a Sinus Infection, Answered

Can I fly with a clogged ear from a sinus infection?

Flying with a blocked eustachian tube can cause real ear pain on descent, because the tube cannot even out the fast pressure change. If you must fly, ask your doctor first. Mayo Clinic describes the gentle Valsalva maneuver as a way to ease ear pressure. Swallowing and yawning also help open the tube.

Why does my voice sound loud in my clogged ear?

Your own voice often sounds louder in a blocked ear. It usually fades as the ear opens.

Should I see a doctor or wait for my clogged ear to clear?

Wait a week or two if the only symptom is fullness and it is slowly improving. See an ENT sooner for severe pain, fever, drainage, dizziness or any sudden drop in hearing.

This site is for informational purposes and is not a substitute for medical advice, diagnosis, or treatment. Communication with us is not a doctor-patient relationship. For persistent symptoms or sudden changes in hearing, consult a licensed medical professional.