Sudden hearing loss: why the first day matters

People wait because the sensation is familiar. The ear feels full. They try to pop it, they sleep on the other side, they book something for next week. A proportion of those ears are full of wax or fluid, and the wait was only inconvenient. Another proportion have sudden sensorineural hearing loss: an inner-ear drop, often unexplained, that does not announce itself with pain. Those ears do not benefit from a week of hope.

It can feel exactly like a blocked ear

From the inside, wax, middle-ear fluid and an inner-ear injury speak the same sentence: this ear is wrong. You may notice ringing, a sense of pressure, or unsteadiness. You may notice only the hearing. Pain is not required, and its absence is not reassuring. The only reliable first step is for someone to look at the drum and test the hearing. A cotton bud is not that step. It is how a second problem gets added. If wax has been your habit, the cotton bud guide is the reason to retire it today.

Why prompt assessment changes the options

NICE guidance on adult hearing loss says that a drop which developed over three days or less, within the past thirty days, and which is not explained by the outer or middle ear, should be referred immediately, to be seen within 24 hours, by an ear, nose and throat service or an emergency department. That wording is deliberate. “Soon” is not the instruction. Twenty-four hours is.

If the same kind of drop happened more than thirty days ago, or hearing worsened over weeks rather than days, the referral is still urgent, on a scale of about two weeks, but the emergency window has been missed. This is why “wait and see if it pops” is expensive. The clock is the onset, not the day you got worried.

For sudden inner-ear loss with no found cause, a specialist may consider a steroid. NICE says to consider it. It is not a medicine to start from a webpage, it is not right for every person, and it does nothing for wax. The benefit, when there is one, belongs to the early days. Other treatments are discussed case by case. This page will not invent a recovery rate. Some ears improve on their own. That possibility is not a strategy.

What else a sudden drop can be

• Wax, or a bud that packed wax against the drum.
• Fluid behind the eardrum after a cold, or a middle-ear infection.
• A hole in the drum, including after a blast, a slap, or a bud. See perforated eardrum.
• Noise injury, including a firecracker. The Diwali hearing guide is the prevention half of this page.
• Less often, a problem of the hearing nerve. Examination and a hearing test are how that is separated from wax.

All of those are reasons to be seen. Only some of them are emergencies. You cannot sort the list by how the ear feels.

Ringing, pressure, dizziness, and the face

Tinnitus beside a sudden drop is common and should be reported, not endured as a separate nuisance. Spinning vertigo with the drop also belongs in the same visit. Weakness of the face on the same side as the deaf ear, altered sensation, a severe headache, or any sign that could be a stroke, is an emergency department problem immediately. NICE treats new one-sided hearing loss with facial weakness as a same-day referral, and a suspected stroke follows the stroke pathway, not an ENT queue.

What to do if it is this morning

Use the same sentence whoever you reach: the hearing dropped suddenly, this ear, at this time.

• Call the clinic the same day and say which ear changed, and when.
• If the clinic is closed, go to an emergency department.
• Mention ringing, dizziness, or any weakness of the face.
• Do not spend the day on drops, cotton buds, or a decongestant.
• A hearing test is useful. It should not delay someone looking at the ear.

The hearing loss page describes the wider subject. This one is narrower on purpose. A sudden change in one ear is the symptom worth a same-day visit. Ear and hearing consultations exist for it. So does the emergency department, when the day has already ended.