Fact sheet

Blocked Ears

The Eustachian tube connects the middle ear to the back of the nose and opens when you swallow or yawn to balance pressure. If it doesn’t open properly, the ear feels full or blocked, sounds muffled, and may pop or crackle. It usually follows a cold or hay fever and settles on its own within a few weeks.

Flying tips. Swallow, yawn, chew or suck a lolly during descent, and stay awake for it. Gently pop your ears often as the plane comes down. Feed babies or give a dummy during take-off and landing. If your nose is blocked, a decongestant spray about 30 minutes before descent may help. Avoid flying or diving with a bad cold or ear infection if you can.

Treatment options

Ratings show how strong the research is.

What you can do

See your GP if

See a doctor the same day for sudden hearing loss, severe dizziness or spinning, or severe ear pain after flying or diving.

Evidence and more information

Reviewed October 2026. General education, not personal medical advice. Treatment depends on your situation, so talk to your GP or pharmacist.