Blocked Nose

Overview

A blocked nose (also called nasal congestion) means the inside of your nose feels stuffy or plugged up, so air does not flow through easily. The lining of your nose is soft and full of tiny blood vessels. When it gets irritated — by a cold, an allergy, smoke or dry air — the lining swells and makes extra mucus (the wet, sticky fluid inside your nose). That swelling and mucus narrow the airway. Your nose may feel full, your voice may sound different, and you may start breathing through your mouth.

Very common. Most adults get a blocked nose several times a year with colds, and many people have it off and on because of allergies or dry indoor air. It is one of the most common reasons people ask a pharmacist or doctor for help.

Anyone can get a blocked nose. It is especially common in children at nursery or school, in people with allergies or asthma, in smokers and people around smoke, and in people who work in dusty or dry places. Pregnancy can cause a stuffy nose because of hormone changes. Some older adults get it because of dry nasal linings or certain long-term medicines. Babies are affected most strongly because they rely on nose breathing.

Symptoms

Common symptoms

• A stuffy or full feeling in the nose, or feeling like you cannot get enough air through it
• A runny nose, or mucus that is clear, white or thicker and yellow-green
• Breathing through your mouth, especially at night
• Snoring or noisy breathing during sleep
• Reduced sense of smell and taste
• A blocked or 'popping' feeling in the ears, or mild ear discomfort
• Pressure or mild aching around the eyes, cheeks or forehead
• A dry mouth or sore throat in the morning from mouth breathing
• A mild cough from mucus trickling down the back of the throat

Symptoms in children

• Trouble feeding or breastfeeding, because babies need to breathe through the nose while sucking
• Fussiness, poor sleep and waking often at night
• Snoring or loud breathing during sleep
• Mouth breathing and a 'blocked' or nasal-sounding voice
• Pulling at the ears or ear discomfort
• Mucus visible around the nostrils, or noisy, rattly breathing
• In toddlers, a runny nose with rubbing the nose upward and dark shadows under the eyes (often linked to allergy)

Symptoms in older adults

• A dry, crusty or scabby feeling inside the nose
• Nosebleeds from a dry or thin nasal lining
• Dry mouth and throat from mouth breathing, which can affect comfort and appetite
• Sleep that feels unrefreshing, or worse snoring
• Blockage caused or made worse by long-term medicines for blood pressure, heart conditions or prostate problems
• Blockage that makes an existing lung or breathing condition feel harder to manage

Causes

Main causes

• Viral infections such as the common cold or flu — the most common cause
• Allergies such as hay fever, dust mite or pet allergy
• Dry air, central heating, air conditioning or cold outdoor air
• Cigarette smoke, vaping, incense, strong perfumes or cleaning fumes
• Sinusitis — swelling of the air spaces around the nose, often after a cold
• Nasal polyps — small, soft, non-cancerous growths inside the nose
• A deviated septum — when the wall between the nostrils is bent to one side
• Enlarged adenoids in children — tissue at the back of the nose that can swell
• Hormone changes, including pregnancy
• Side effects of some long-term medicines, such as certain blood pressure medicines or medicines for prostate problems
• Overuse of decongestant nose sprays, which can cause rebound blockage

Risk factors

• Having allergies, asthma or eczema
• Living with a smoker or being regularly around smoke or dust
• Working in dusty, dry or chemically scented environments
• Being pregnant
• Having a bent nasal septum or a history of nose injury
• Having a weakened immune system, or spending time in crowded places during cold and flu season
• Being a young child in childcare or school

When to see a doctor

See a doctor urgently if:

• You or your child are finding it hard to breathe
• There is swelling of the face, lips, tongue or throat
• One-sided blockage with bloody or watery discharge after a head injury
• Fever with a severe headache, stiff neck or confusion
• Swelling or redness around the eye, or any change in vision
• A nosebleed you cannot stop with 20 minutes of pressure
• A baby under 3 months old with a fever or who has stopped feeding well

Book a routine appointment if:

• A blocked nose that lasts more than about 10 to 14 days or keeps coming back
• Blockage that is always on the same side
• Blockage with loss of smell that does not return as the cold settles
• Blockage that clearly follows contact with dust, pets or pollen
• Sleep problems, loud snoring or daytime tiredness
• Frequent sinus pressure, headaches or ear problems
• In children: mouth breathing most of the time, noisy breathing at night, or speech that sounds nasal

Diagnosis

A blocked nose is usually diagnosed by talking about your symptoms and having a simple look inside your nose. A doctor or nurse may ask when it started, whether it affects one or both sides, whether it comes and goes with seasons or places, what medicines you take, and whether you smoke. They will check your nose, throat and ears, and may feel your face and neck. They may ask about sleep, snoring and allergies. This is usually enough to suggest a cause and a plan.

Tests that may be done

• A small handheld instrument with a light to look inside the nose
• A short look with a thin, flexible camera if the cause is unclear or a specialist is involved
• Allergy testing, such as a skin prick test or a blood test, if allergy is suspected
• A swab from the nose or throat if a specific infection needs checking
• A scan of the sinuses, used only in selected cases and not routinely

What to expect at your appointment

The visit is usually quick and comfortable. Looking inside the nose takes seconds. If allergy testing is suggested, results may take a few days to a couple of weeks. Most people leave with simple advice, a plan for self-care, and a clear idea of what to try next and when to come back.

Treatment

Treatment depends on the cause. The aim is to ease the stuffiness, keep the nose moist and clear, and treat any underlying allergy or infection. Most people do well with self-care and advice from a pharmacist. If a cause such as allergy, polyps or a structural blockage is found, your doctor can discuss options suited to you. Always check with a pharmacist or doctor before using any medicine, especially in pregnancy, in babies and young children, and if you take other medicines or have long-term conditions.

Self-care at home

• Rinse the nose gently with salt water (saline) spray or a salt-water rinse — this thins mucus and washes away irritants
• Breathe in steam from a warm shower or a bowl of hot water (carefully, and never leave a child alone with hot water)
• Drink plenty of fluids so mucus stays thin
• Use a humidifier in dry rooms, and keep rooms aired
• Prop your head up a little on extra pillows when sleeping
• Put a warm compress over your cheeks and forehead for pressure
• Keep away from smoke, vaping, strong perfumes and scented candles
• Try adhesive nasal strips at night to open the nostrils a little
• Sleep, rest and eat normally — your body needs energy to recover
• Avoid using decongestant nose sprays for more than a few days in a row, as this can make blockage worse

Medical treatments

Your pharmacist can suggest treatments matched to your symptoms and age, including salt-water rinses, treatments that calm allergy symptoms, and short courses of medicine that reduce swelling. For longer-term problems such as allergies or polyps, a doctor may prescribe a nose spray that reduces swelling in the nasal lining, taken regularly for several weeks to work. Antibiotics are not helpful for ordinary colds and are only considered if a bacterial infection is suspected. If you are pregnant, breastfeeding, or treating a baby or young child, get advice before using anything — some products are not suitable.

When is surgery considered?

Surgery is not needed for most blocked noses. It may be discussed if there is a clear structural cause that does not respond to treatment — for example a badly bent septum, large nasal polyps, or, in children, enlarged adenoids causing sleep and breathing problems. A specialist would explain the benefits and risks, and simpler options are usually tried first.

Living with this condition

A blocked nose is mostly a nuisance rather than a danger, but it can wear you down when sleep is broken. Keep salt-water spray handy, keep your bedroom air moist and not too warm, and give yourself permission to rest during a cold. If allergies are the cause, tracking when symptoms flare can help you spot triggers and plan ahead — for example, keeping windows closed on high-pollen days and washing your hair after being outdoors.

Lifestyle tips

• Stop smoking and keep your home smoke-free — this is one of the most helpful steps for nasal symptoms
• Keep bedding and soft toys washed regularly and reduce dust if dust allergy is suspected
• Keep pets out of the bedroom if pet allergy is a problem
• Use a humidifier in winter and keep rooms ventilated
• Stay active — gentle exercise can help open the nose briefly
• Keep a simple symptom diary if you want to spot patterns with seasons, places or products

Diet and exercise

There is no special diet for a blocked nose, but drinking enough fluids helps keep mucus thin. Warm drinks can feel soothing. Gentle exercise such as a walk or a light indoor session can briefly open up the nose, but do not push through exercise if you feel unwell or feverish. If certain foods seem to trigger symptoms for you, mention it to your doctor rather than cutting out whole food groups on your own.

Mental health and emotional wellbeing

Broken sleep and a constantly stuffy nose can leave you tired, foggy and irritable, and long-term symptoms can affect mood and concentration. That is a normal response to feeling uncomfortable, not a sign of weakness. If low mood, anxiety or poor sleep is affecting your daily life, tell your doctor — support is available and it is worth asking for.

Prevention

Not every blocked nose can be prevented, but you can lower how often it happens. Handwashing and covering coughs and sneezes reduce the spread of colds. Avoiding smoke and strong fumes, keeping indoor air from getting too dry, and managing allergies well all help. If a medicine seems to be causing blockage, ask your doctor about alternatives rather than stopping it yourself.

Vaccines

Staying up to date with recommended vaccines, including flu vaccination if you are offered it, can reduce the chance of respiratory infections that cause a blocked nose. Ask your doctor or pharmacist what is recommended for you and your family.

Screening programmes

There is no screening programme for a blocked nose. It is checked when you have symptoms. See your doctor if symptoms persist, keep returning, or are always on one side.

Complications

If left untreated

• Poor sleep, tiredness and difficulty concentrating
• Sinusitis, with facial pressure and a thicker discharge
• Ear problems, including fluid behind the eardrum and temporary hearing changes, especially in children
• Worsening of asthma or other lung conditions
• In children: feeding difficulties, poor sleep and, rarely, effects on growth
• Loss of smell that lingers after the original cause has settled
• Rebound blockage from overusing decongestant nose sprays

Long-term outlook

The outlook is good. Most blocked noses settle quickly with simple self-care, and even long-term causes such as allergies or polyps usually improve well with the right treatment. If symptoms continue, there is a lot your doctor can offer, from targeted treatments to specialist assessment for structural problems. The important thing is to get help if things are not settling, so the cause can be found and managed.

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