Eustachian tube dysfunction, usually shortened to ETD, can make an ear feel blocked, pressurised or “underwater”. It may also cause popping, crackling, discomfort, muffled hearing and tinnitus.
The Eustachian tube connects the middle ear to the back of the nose. It normally opens briefly when you swallow or yawn, allowing air pressure to equalise and fluid to drain from behind the eardrum.
ETD commonly develops during a cold, sinus inflammation, hay fever or a change in atmospheric pressure. Mild cases often settle without specific treatment over several days or weeks.
Swallowing, yawning, gentle pressure equalisation and treating an identifiable nasal allergy may help. However, ear fullness is not always caused by ETD. Earwax, infection, jaw problems, inner-ear conditions and sudden sensorineural hearing loss can produce similar symptoms.
Seek urgent same-day medical advice for sudden hearing loss in one or both ears, particularly if there is no obvious wax or infection. Sudden inner-ear hearing loss may feel like a blocked ear but requires prompt specialist assessment.
This guide provides general information. Do not repeatedly or forcefully “pop” an ear that is painful, and do not begin decongestants or other medication without checking that they are suitable for you.
What is the Eustachian tube?
Each ear has a narrow passage connecting the air-filled middle-ear space to the upper throat behind the nose. This is the Eustachian tube.
Its main functions are to:
- balance air pressure on each side of the eardrum;
- drain normal middle-ear secretions;
- protect the middle ear from material and pressure coming from the throat;
- help maintain healthy middle-ear ventilation.
The tube is normally closed. Muscles around it briefly open the passage when you swallow, yawn, sneeze or chew.
If it does not open properly, pressure in the middle ear may become lower than the pressure outside. The eardrum can then be pulled inwards, producing a sensation of fullness and reducing how effectively sound is transmitted.
Fluid may accumulate behind the eardrum when ventilation remains poor. In children, this is commonly called glue ear or otitis media with effusion.
What are the symptoms of Eustachian tube dysfunction?
Symptoms can affect one or both ears and may come and go.
Common symptoms include:
- a blocked or clogged feeling;
- pressure or fullness in the ear;
- muffled or dulled hearing;
- popping, clicking or crackling sounds;
- mild ear discomfort or pain;
- difficulty equalising pressure when flying;
- tinnitus or ringing in the ear;
- a feeling that sounds are distant or heard through water;
- occasional mild dizziness or imbalance.
Some people can temporarily clear the pressure by swallowing or popping the ear, only for the blocked sensation to return.
ETD usually causes a mild conductive hearing reduction, meaning sound is not moving efficiently through the eardrum and middle ear. It does not normally cause profound deafness.
Symptoms that are severe, sudden, persistent or confined to one ear need assessment rather than an assumption that ETD is the cause.
Our guide to blocked ears, wax and pressure compares the common explanations for a clogged-ear sensation.
What causes Eustachian tube dysfunction?
Colds and respiratory infections
A viral infection can cause inflammation and mucus around the opening of the Eustachian tube. Ear pressure may continue after the other cold symptoms have improved.
Hay fever and allergic rhinitis
Allergic inflammation can cause nasal congestion, sneezing and swelling around the Eustachian tube opening. Symptoms may be seasonal or associated with an animal, dust mites or another allergen.
Our guide to hay-fever symptoms and treatment explains antihistamines, nasal sprays and when to seek help.
Sinus and nasal inflammation
Acute or chronic sinusitis, persistent rhinitis, nasal polyps and other conditions affecting the nose can interfere with ventilation of the middle ear.
See our guide to sinusitis symptoms and treatment for more information.
Changes in air or water pressure
The tube must open more actively during aeroplane descent, mountain travel, diving and hyperbaric treatment. A cold or allergy can make equalisation harder.
Children’s anatomy
Children have shorter, narrower and more horizontal Eustachian tubes. This makes poor ventilation and middle-ear fluid more common, particularly after a cold or with enlarged adenoids.
Anatomical obstruction
Swollen adenoids, nasal inflammation and, less commonly, a growth near the Eustachian tube opening can obstruct it. Persistent unexplained symptoms in one adult ear deserve examination, particularly if accompanied by nosebleeds, a neck lump or nasal obstruction.
Are there different types of ETD?
Not every Eustachian tube problem involves a tube that is simply “blocked”. Identifying the type matters because treatments that help one condition can worsen another.
Obstructive or dilatory ETD
The tube does not open sufficiently. This is the familiar blocked-ear pattern associated with colds, allergies, negative middle-ear pressure and sometimes middle-ear fluid.
Typical symptoms include:
- pressure and fullness;
- muffled hearing;
- popping or crackling;
- difficulty clearing the ear.
Baro-challenge-induced ETD
The ears may feel normal at ground level but become painful or blocked during flying, diving or another rapid pressure change.
An ordinary ear examination and pressure test can appear normal between episodes. A clear description of what happens during pressure changes is therefore important.
Patulous Eustachian tube
In patulous ETD, the tube stays abnormally open rather than failing to open. This can cause:
- hearing your own voice unusually loudly;
- hearing your own breathing inside the affected ear;
- a hollow or echoing sound;
- symptoms that worsen during exercise or while upright;
- improvement when lying down.
Patulous ETD can occur after substantial weight loss, dehydration or hormonal change, although a cause is not always found.
Decongestants and repeated pressure-opening exercises can aggravate patulous symptoms. Someone whose main complaint is hearing their own breathing should be assessed before treating themselves for an assumed blockage.
What can help mild Eustachian tube dysfunction?
Mild ETD following a cold often improves as inflammation settles. NHS guidance from The Rotherham NHS Foundation Trust notes that many mild cases improve by themselves within approximately six to eight weeks.
Swallowing and yawning
Frequent swallowing, yawning or chewing can encourage the tube to open naturally. Sipping water or chewing sugar-free gum may help during an aeroplane descent.
Toynbee manoeuvre
Pinch the nostrils closed and swallow. This uses the swallowing muscles to help equalise pressure without forcefully blowing into the middle ear.
Gentle Valsalva manoeuvre
Close your mouth, pinch your nose and breathe out very gently against the closed nostrils. You may feel a soft pop or pressure change.
Stop if it causes pain, marked dizziness or worsening symptoms. Do not blow forcefully or repeat the manoeuvre continuously, as excessive pressure can damage the eardrum or inner ear.
Autoinflation devices
A nasal balloon or another pressure-controlled autoinflation device may help selected adults and older children. It encourages the Eustachian tube to open in a more structured way.
The device should be used according to its instructions or professional advice. It is not appropriate in every situation, particularly during significant ear pain, acute infection or immediately after certain ear operations.
Saline nasal spray or rinse
Saline can moisturise the nose and help clear mucus or allergens. It does not directly open the Eustachian tube, but may improve associated nasal symptoms.
Use sterile or appropriately prepared water for nasal irrigation. Plain tap water should not be used in a rinse device unless it has been boiled and allowed to cool according to safe instructions.
Do medicines help ETD?
Medication is most useful when it treats an identified cause such as allergic rhinitis. There is no tablet or spray guaranteed to open every dysfunctional Eustachian tube.
Steroid nasal sprays
A steroid nasal spray may be recommended when allergy, chronic rhinitis or sinus inflammation is contributing to symptoms.
These sprays reduce nasal inflammation gradually. They are not instant decongestants and may require consistent use over several weeks.
Technique matters:
- gently clear the nose;
- keep the head slightly forward;
- aim the nozzle outwards towards the ear on the same side;
- avoid pointing at the central nasal septum;
- breathe in gently rather than sniffing hard.
Incorrect technique can send medicine into the throat or cause irritation and nosebleeds.
Antihistamines
Antihistamines may help when symptoms are caused by allergy. They are less likely to help ETD following an ordinary viral cold without an allergic component.
Nasal decongestant sprays
A decongestant spray can provide short-term relief from nasal congestion in selected people. It should normally be used only for a few days and never beyond the product’s recommended duration.
Prolonged use can cause rebound congestion, making the nose feel increasingly blocked when the spray wears off.
Oral decongestants
Medicines containing pseudoephedrine are not suitable for everyone. They may increase heart rate or blood pressure and can interact with other medicines.
Ask a pharmacist or clinician before using one if you:
- have high blood pressure or heart disease;
- have glaucoma;
- have an overactive thyroid;
- have prostate or urinary problems;
- are pregnant or breastfeeding;
- take antidepressants or other interacting medicines.
Antibiotics
Antibiotics do not treat uncomplicated ETD caused by a virus, allergy or pressure imbalance. They may be used if a clinician diagnoses a bacterial infection requiring them.
Do not put ordinary decongestants, hydrogen peroxide, olive oil or wax-removing drops into the ear expecting them to reach the Eustachian tube. The eardrum separates the ear canal from the middle ear.
How is ETD diagnosed?
A GP, audiologist or ENT clinician will ask:
- when symptoms started;
- whether one or both ears are affected;
- whether symptoms followed a cold or allergy;
- what happens during flying or diving;
- whether you hear your own voice or breathing loudly;
- whether hearing loss was sudden or gradual;
- about pain, discharge, tinnitus and dizziness;
- about previous ear surgery and infections.
Assessment may include:
Otoscopy
An otoscope is used to examine the ear canal and eardrum. The clinician looks for wax, infection, fluid, retraction, perforation or another visible cause.
Hearing test
Pure-tone audiometry measures the quietest sounds you can hear at different frequencies. It helps distinguish conductive hearing loss from a possible inner-ear problem.
Tympanometry
Tympanometry changes pressure in the ear canal to assess how the eardrum and middle-ear system move. It may show negative pressure or middle-ear fluid.
Nasal endoscopy
An ENT specialist may pass a thin flexible camera through the nose after applying local anaesthetic spray. This allows examination of the Eustachian tube openings, nasal passages and upper throat.
Results can be normal even when baro-challenge ETD is genuine, because pressure and hearing may have returned to normal after the flight or dive.
If hearing has changed, see our complete guide to hearing loss.
What else can feel like ETD?
Several conditions can cause pressure, muffled sound or a blocked sensation.
| Possible cause | Clues |
|---|---|
| Earwax | Gradual blockage, reduced hearing or hearing-aid feedback |
| Middle-ear infection | Pain, fever, recent cold and sometimes a bulging eardrum |
| Outer-ear infection | Pain when touching the ear, discharge or an inflamed canal |
| Glue ear | Persistent middle-ear fluid and conductive hearing loss |
| Temporomandibular joint problem | Jaw pain, clicking, tooth grinding or symptoms during chewing |
| Sudden sensorineural hearing loss | Rapid hearing loss, often in one ear, sometimes with tinnitus or vertigo |
| Ménière’s disease | Episodes of vertigo, fluctuating hearing loss, tinnitus and fullness |
| Patulous Eustachian tube | Own voice and breathing sound unusually loud |
Jaw-joint pain is frequently mistaken for ear disease because the joint sits immediately in front of the ear canal.
Earache can also be referred from the teeth, throat or neck. Our guide to earache in adults explains these alternative causes.
Tinnitus may become more noticeable when hearing is temporarily muffled. Persistent or one-sided tinnitus should be assessed; see our complete guide to tinnitus.
How can you protect your ears while flying or diving?
Pressure problems are commonly worse during descent, when outside air pressure increases and the Eustachian tube must allow air into the middle ear.
During a flight:
- stay awake during descent;
- swallow regularly;
- sip water;
- chew sugar-free gum;
- yawn deliberately;
- use a gentle equalisation technique before pain becomes severe;
- consider pressure-regulating earplugs;
- feed a baby or offer a dummy during descent.
If possible, avoid flying with a severe cold, acute ear infection or uncontrolled nasal congestion. If travel cannot be postponed, ask a pharmacist or clinician about safe options before the flight.
Patient.info’s guidance on aeroplane ear explains swallowing, gentle pressure equalisation and other practical measures.
Diving creates larger and faster pressure changes. Never continue descending through ear pain and never use a forceful Valsalva manoeuvre underwater. Abort the dive safely if you cannot equalise.
Persistent pain, hearing loss, dizziness or discharge after diving requires medical assessment. Do not return to diving until the ear has recovered and a suitably experienced clinician has advised that it is safe.
What treatments can an ENT specialist offer?
Persistent symptoms may justify referral to ENT, particularly when hearing is affected or the diagnosis is unclear.
Treatment of nasal or sinus disease
The specialist may manage allergic rhinitis, chronic sinusitis, polyps or another source of inflammation. This can include medication or, in selected cases, nasal or sinus surgery.
Grommets or ventilation tubes
A small tube can be inserted through the eardrum to ventilate the middle ear directly. This may relieve pressure or fluid while bypassing the Eustachian tube.
Possible risks include:
- ear discharge or infection;
- blockage of the grommet;
- early extrusion;
- scarring of the eardrum;
- a persistent hole after the tube comes out;
- recurrence after extrusion.
A grommet ventilates the middle ear but does not repair the Eustachian tube itself.
Balloon dilation
A specialist passes a balloon catheter through the nose into the cartilaginous part of the Eustachian tube. The balloon is inflated for a short period and then removed.
NICE guidance on balloon dilation for chronic ETD states that evidence is adequate to support the procedure when normal arrangements for clinical governance, consent and audit are in place.
Balloon dilation is intended for selected people with chronic obstructive ETD. It is not an automatic treatment for every blocked ear and is not suitable for patulous ETD.
An ENT assessment should confirm that symptoms, examination and hearing or pressure tests support the diagnosis before surgery is considered.
Our guide to private ENT consultation costs in the UK explains typical fees for consultations, hearing tests, endoscopy and procedures.
When should you seek urgent medical help?
Seek urgent same-day assessment if you develop:
- sudden hearing loss over hours or a few days;
- rapidly worsening hearing in one ear;
- new hearing loss with tinnitus or vertigo;
- severe ear pain;
- blood, pus or clear fluid coming from the ear;
- swelling or redness behind the ear;
- facial weakness;
- severe persistent dizziness;
- ear symptoms after a significant head injury;
- hearing loss or severe pain after diving.
Call 999 if neurological symptoms such as facial drooping, arm weakness, difficulty speaking, collapse or a sudden severe headache accompany the hearing or balance problem.
Arrange a routine GP, audiology or ENT assessment if:
- symptoms persist beyond several weeks;
- one ear remains blocked without an obvious cold;
- hearing is affecting work or conversation;
- the problem repeatedly returns;
- you cannot fly without severe pain;
- your own voice or breathing sounds abnormally loud;
- a child’s hearing, speech or education may be affected.
Sudden inner-ear hearing loss can be mistaken for ETD because both may feel like pressure or blockage. The speed of onset is an important warning sign.
Frequently asked questions
How long does Eustachian tube dysfunction last?
Mild ETD following a cold may settle within days, although pressure and muffled hearing can continue for several weeks. Symptoms lasting beyond approximately six to eight weeks should be reviewed.
How do you unblock a Eustachian tube?
Swallowing, yawning, chewing, a gentle Toynbee or Valsalva manoeuvre and treatment of associated nasal allergy may help. Do not force the ear to pop if it is painful.
Can ETD cause hearing loss?
Yes. Negative middle-ear pressure or fluid can cause temporary conductive hearing loss. Sudden or substantial hearing loss requires urgent assessment because it may have another cause.
Can ETD cause tinnitus?
Yes. Ringing, humming or other tinnitus can accompany pressure and muffled hearing. New one-sided tinnitus or tinnitus with sudden hearing loss should be assessed.
Can ETD cause dizziness?
Mild imbalance can occur, particularly with pressure changes, but significant spinning vertigo is less typical and may indicate another ear condition.
Does earwax cause Eustachian tube dysfunction?
No. Earwax blocks the external ear canal, while the Eustachian tube connects the middle ear to the back of the nose. Both can cause a blocked sensation but require different treatment.
Do nasal steroid sprays help ETD?
They may help when allergic rhinitis or persistent nasal inflammation contributes to ETD. They do not work immediately and are unlikely to solve every case of ear pressure.
Do antihistamines help blocked ears?
They may help if allergy is causing nasal and Eustachian tube inflammation. They are less useful for non-allergic causes and can potentially worsen patulous ETD by increasing dryness.
Can decongestant spray unblock the Eustachian tube?
It may temporarily reduce nasal congestion, but evidence for directly improving ETD is limited. Use should normally be brief because prolonged treatment can cause rebound congestion.
Is it safe to pop your ears?
Gentle pressure equalisation is usually safe for many people. Forceful or repeated blowing can cause pain, dizziness or injury. Stop if symptoms worsen.
Why does my ear pop but immediately block again?
The tube may open briefly but surrounding inflammation, negative pressure or middle-ear fluid can cause the sensation to return. An examination and tympanometry may clarify the cause.
Can anxiety cause ETD?
Anxiety does not usually cause physical Eustachian tube obstruction, but it can increase awareness of pressure, tinnitus and jaw tension. Symptoms should still be assessed when persistent or accompanied by hearing loss.
Does ETD affect one or both ears?
Either is possible. Colds and allergies commonly affect both ears, while anatomical or local problems may be one-sided. Persistent unexplained one-sided symptoms deserve examination.
Can children have Eustachian tube dysfunction?
Yes. Their Eustachian tubes are narrower and more horizontal, making middle-ear fluid common. Hearing concerns, speech delay or school difficulties should prompt assessment.
When is balloon dilation considered?
It may be considered for selected people with confirmed chronic obstructive ETD that has not improved with appropriate conservative management. An ENT specialist must first exclude other causes and patulous ETD.
