Crackling or Popping in Your Ear: Common Causes and How to Stop It

What the crackling actually is

The middle ear is an air-filled space behind the eardrum, connected to the back of the nose by the Eustachian tube. That tube flicks open briefly each time you swallow or yawn to keep the pressure balanced. When it's working normally you don't notice it. When it's swollen, sticky or slow to open, each opening becomes audible — heard as a click, pop, crackle or a sound like rice crispies.

The common causes

• Eustachian tube dysfunction. The most frequent cause. Typically follows a cold, sinus infection or hay fever, and can linger for a week or two after the other symptoms clear.
• Ear wax. Wax resting against the eardrum, or a partly blocked canal, crackles as the eardrum moves. Often accompanied by a blocked or muffled feeling.
• Pressure change. After flying, diving or driving over high ground, the ear may crackle for a day or so while it re-equalises.
• Fluid in the middle ear. Following an infection, thin fluid can remain behind the eardrum and produce bubbling or crackling, usually with some hearing loss.
• Jaw and muscle causes. Jaw joint (TMJ) problems and, less commonly, small spasms of the middle ear muscles can create clicking that changes when you move your jaw.

What to try at home

• Swallow, yawn or chew gum regularly to encourage the tube to open.
• Try a gentle Valsalva: pinch the nose, close the mouth and blow softly until you feel light pressure. Never blow hard, and stop if it hurts.
• Treat the underlying congestion — a steroid or saline nasal spray for hay fever, or a short course of a pharmacist-recommended decongestant.
• Steam inhalation or a warm flannel over the ear can be soothing.
• Don't use cotton buds — they push wax deeper and worsen the problem.

When it needs checking

Book an appointment if the crackling has lasted more than two to three weeks, is confined to one ear, or comes with any of the following:

• Reduced or muffled hearing on that side.
• Ear pain, discharge or bleeding.
• Dizziness or a spinning sensation.
• New or one-sided tinnitus.

A hearing test with tympanometry measures how well the eardrum and middle ear are moving, which separates a wax problem from a Eustachian tube or middle ear fluid problem within a single appointment.

Related reading

If your symptoms started after a flight, see ears blocked after flying. For what a test involves, read what happens at a hearing test, and for the wider picture, signs you may have hearing loss.

Frequently asked questions

Why does my ear crackle when I swallow?

That clicking or crackling is the Eustachian tube opening and closing to equalise pressure behind the eardrum. It becomes noticeable when the tube is congested or slightly inflamed — often after a cold, with allergies, or after a flight.

Can ear wax cause crackling?

Yes. Wax touching the eardrum, or a partly blocked canal, can produce a crackling, rustling or rice-crispy sound as the eardrum moves. Removing the wax usually resolves it immediately.

How long does ear crackling last?

When it follows a cold or a flight, crackling generally settles within a few days to two weeks as congestion clears. Crackling that persists beyond a few weeks, or comes with hearing loss, should be assessed.

How do I stop the crackling?

Swallowing, yawning, chewing gum and a gentle Valsalva manoeuvre all help the Eustachian tube open. Treating the underlying congestion — a cold or hay fever — usually does the rest. If wax is the cause, it needs removing in clinic.

When should I see an audiologist about ear crackling?

Book an appointment if the crackling lasts more than two to three weeks, affects only one ear persistently, or comes with hearing loss, pain, discharge, dizziness or tinnitus.