Sudden Hearing Loss: Why It's a Medical Emergency You Shouldn't Ignore
Quick answer
Sudden hearing loss – losing hearing in one ear over a few hours to three days – should be treated as an emergency. Seek care the same day, ideally within 24 hours. Treatment with steroids works best when it’s started within the first week, so don’t wait to see if it comes back on its own. It’s often mistaken for earwax or a blocked ear, but true sudden hearing loss needs urgent assessment.
What sudden hearing loss is

Sudden hearing loss means a noticeable drop in hearing – usually in one ear – that comes on over three days or less. Some people wake up with it; others notice the phone sounds dead on one side, or hear a pop followed by muffled hearing and ringing.
The type that’s a true emergency comes from the inner ear or hearing nerve. Because it can be subtle at first, it’s easy to brush off as wax or a cold – which is exactly why it gets missed.
Why every day counts
This is the single most important message: sudden hearing loss is time-critical. The main treatment is a course of steroids, and the evidence is clear that the sooner it’s started, the better the chance of recovery. Starting within the first week gives the best results, and the treatment window narrows over the following weeks.
Guidelines advise people with recent sudden hearing loss to be seen within 24 hours. So if your hearing drops suddenly, please don’t adopt a wait-and-see approach – act the same day.
How to tell it from a simple blocked ear
Wax or a cold tends to build up gradually and often comes with obvious fullness, itch or recent illness. Sudden inner-ear hearing loss usually appears quickly, frequently in one ear, and may come with ringing or a sense of imbalance but no pain.
The honest answer is that you can’t always tell the difference yourself – and that’s fine. The safe move is to get it checked urgently rather than trying to work it out at home.
What to do right now
If you or someone you know has sudden hearing loss:
- Contact ClearEar and ask specifically about urgent ENT assessment for sudden hearing loss
- Contact your GP, an out-of-hours service or an emergency department today
- Don’t wait for a routine appointment in a week or two
- Make a note of when it started – the timing guides treatment
What assessment involves

You’ll have your ears examined to rule out wax or infection, and a hearing test (audiometry) to confirm the type and degree of loss. If it’s confirmed as inner-ear hearing loss, steroids are usually started quickly, and further tests may follow to look for a cause.
Common questions
Is sudden hearing loss always permanent?
No. Many people recover, particularly when treatment starts early – which is why getting seen fast matters so much.
Could it just be earwax?
Sometimes, and that’s good news if so. But because true sudden hearing loss is time-critical, it should be checked urgently rather than assumed to be wax.
What causes it?
Often no single cause is found. Possible triggers include viral infections and problems with blood flow to the inner ear; rarely it points to something needing further tests.
How quickly should I be seen?
Aim for the same day – within 24 hours. The first week is the most important window for treatment.
Book with ClearEar
If your hearing has dropped suddenly, please seek urgent medical care today rather than booking ahead. Once any emergency is ruled out, ClearEar can check your ears, remove wax with microsuction and arrange a hearing assessment.
Microsuction wax removal – Nasal endoscopy – Hearing assessments
Book online at clearear.ie or call 01 919 8706. Clinics at Dublin 1 and Lucan.
This article is general information, not medical advice. If you are worried about your symptoms, please see your GP or an ENT professional.








