Blocked Ears But No Cold? ENT Doctor Explains The Possible Causes

When the ear is blocked or muffled, it makes one think that he/she has a cold. However, if you don't have any nasal blockage, don't have a cough and you feel no other symptoms, what should you do? This feeling of fullness, or popping feeling in the ear can still exist. This is just one of the various causes. 

This can cause the same feeling due to problems with the Eustachian tube, earwax, jaw joint, allergies, and even pressure changes. Another, lesser- known, condition involves the Eustachian tube remaining open instead of blocked. Read on to know more about it. 

What Causes A Blocked Ear Without A Cold?

Dr Rohit Udaya Prasad, Lead and Senior Consultant, ENT and Cochlear Implants, KIMS Hospitals, Bengaluru says that, “the Eustachian tube is the little tube that links the middle ear to the back of nose and throat. It's meant to equalize pressure on both sides of the eardrum.

“Most people think that when they have blocked ears, they have a blocked nose, when they don't, they're left with a big question, they don't have a cold, they don't have an allergy, nothing is obviously wrong, there's nothing that's sticking out”.

Blocked Ears without Cold

The tube opens up at normal times, and it typically opens just for a short amount of time when one swallows, yawns, or chews. It may fail to open properly and thus cause pressure in the middle ear or unequal pressure. This can cause sounds to sound dull and give a fullness or blockage sensation.

A 2022 Otolaryngologic Clinics of North America review describes Eustachian tube dysfunction as a common middle-ear problem and discusses its different causes, diagnosis and treatment.

The Eustachian Tube Can Be The Problem Even Without A Cold

When the Eustachian tube does not open properly, it is often described as obstructive Eustachian tube dysfunction.

According to Dr Udayan, “When it isn't opening properly, air trapped in the middle ear gets absorbed over time, creating negative pressure that pulls the eardrum inward. That's what produces the classic blocked, muffled, pressure-in-the-ear sensation, and it has nothing to do with mucus or congestion specifically, it's a mechanical and pressure problem.”

Several things can contribute to this:

• Allergies: Swelling around the tube opening can hinder its functioning.
• Chronic nasal inflammation: Can involve the region of the Eustachian tube.
• Changes of pressure: This can happen when the ears feel blocked during flight, diving or when travelling in mountainous areas.
• Middle-ear fluid: Middle-ear fluid can lead to a fullness sensation and muffled hearing even if the ears are not infected.
• Reflux: Swallowing is delayed, irritation around the throat and Eustachian tube opening may contribute for some people.

Earwax Can Make Your Ear Feel Plugged

Sometimes the explanation is much simpler. According to Dr Udayan, earwax can build up in the ear canal and cause:

• A blocked or full sensation
• Muffled hearing
• Reduced hearing in one ear
• Occasional ringing

Cotton buds can make this worse by pushing wax further into the ear canal. If wax is suspected, professional examination and removal are safer than repeatedly trying to clean the ear yourself.

Could Your Jaw Be Causing Ear Fullness?

Yes. The jaw joint, known as the temporomandibular joint (TMJ), sits very close to the ear.

Jaw clenching, teeth grinding or TMJ problems can sometimes cause a feeling of pressure or fullness around the ear even when the ear itself looks normal.

This is more likely if the blocked-ear sensation occurs along with:

• Jaw pain
• Clicking or popping while chewing
• Teeth grinding
• Pain when opening the mouth
• Tightness around the jaw or face

This is one reason an ENT examination may sometimes be normal even though the person genuinely feels that their ear is blocked.

How Can You Tell Which Cause You Might Have?

The symptoms can offer clues, although they cannot replace an examination.

More suggestive of obstructive Eustachian tube dysfunction:

• Ear feels as if it needs to pop
• Symptoms after flying or diving
• Fullness during allergy flare-ups
• Muffled hearing
• More suggestive of patulous Eustachian tube dysfunction:
• Hearing your own voice unusually loudly
• Hearing your own breathing
• Symptoms that worsen with exercise
• Relief when lying down

More suggestive of a jaw-related cause:

• Jaw pain or clicking
• Teeth grinding
• Symptoms linked to chewing or clenching
• More suggestive of earwax:
• Gradual muffled hearing
• Blockage without other cold symptoms
• A history of frequent ear cleaning with cotton buds

What Actually Helps A Blocked Ear?

Treatment will vary depending on the cause. Not all types of ear fullness can be treated with a single treatment. Dr Udayan advises the treatment of the underlying cause instead of continuous popping of the ears.

For example:

• Ear wax: It can require cleaning by ear wax removal specialists.
• Jaw-related symptoms: Jaw relaxation, dental assessment and treatment for grinding may help.
• Pressure blockage: Slightly pressure equalising techniques can be helpful.
• If you experience a patulous Eustachian tube, some people can help by staying hydrated and avoiding sudden and excessive weight loss.
• Reflux symptoms: If reflux occurs, it can diminish the symptoms in the throat and ears.

Blocked Ears

So, it is best to treat the actual cause and not try numerous remedies without any knowledge of what they are.

While nasal steroid sprays are a common go-to treatment, medical evidence suggests they may not offer much relief. A 2024 J Laryngol Otol review of multiple clinical trials found no significant difference in ear pressure recovery between patients using nasal steroid sprays and those who did not. Because of this, medical guidelines generally do not recommend relying on steroid sprays alone to treat a blocked Eustachian tube.

When Should You See An ENT?

Dr Udayan recommends an ENT evaluation if symptoms:

• Last for more than two to three weeks
• Keep returning without an obvious reason
• Affect only one ear and persist
• Come with hearing loss
• Occur with significant ear pain
• Are associated with vertigo
• Begin after a head injury or significant pressure change

Persistent one-sided ear fullness, in particular, should not simply be assumed to be wax or congestion. An ENT can examine the ear, assess hearing and, when needed, examine the nose and back of the throat.

ALSO READ- Nose Blocked Every Rainy Season? An ENT Doctor Explains Why

Conclusion

Ear being blocked does not always indicate infection, even if there is no cold. It may be caused by Eustachian tube issues, earwax, jaw problems, pressure changes or fluid in the middle ear behind the eardrum. The most helpful hint could be the pattern. An ear that requires popping after a plane ride is not the same as an ear that feels worse when exercising and makes noises that are loud when a person breathes.

When this continues, or it returns after subsequently popping the ear again, or when hearing loss or pain/dizziness is associated with it, it is better to determine the cause and not continue to pop the ear.