Stuffy Nose in Babies: Causes, Remedies, and When to See a Doctor

Your baby is snuffling, breathing heavily, and struggling to sleep. Maybe they're also having trouble nursing because their nose is blocked. Few things worry parents more than a baby who can't breathe freely.

Babies are obligate nose-breathers in the first months of life — they breathe almost exclusively through their nose. This means even mild congestion can cause noticeable problems. The good news is that there are simple remedies that help.

Why Do Babies Get Stuffy Noses?

Baby noses are small. The nasal passages are narrow, and mucus can easily build up. Here are the most common causes:

A Cold (Most Common)

Babies can have 8–10 colds during their first year, according to the AAP. A cold is the most common cause of a stuffy nose and produces:

• Runny or blocked nose
• Sneezing
• Mild cough
• Possibly a low-grade fever

Dry Air

Cold outdoor air and dry indoor heating can make nasal membranes dry and swollen. Babies are especially vulnerable to this.

Physiological Congestion

Newborns can have a natural stuffiness in the first weeks caused by:

• Residual amniotic fluid in the nasal passages
• Maternal hormones affecting the mucous membranes
• Narrow nasal passages that haven't yet grown wider

Allergy (Less Common in Babies)

Allergy is a rare cause of nasal congestion in babies under 1 year, but it can occur. Signs include persistent runny nose, sneezing, and itchy eyes, often in connection with pollen or pet dander.

Other Causes

• Enlarged adenoids — more common from age 2–3
• Foreign object in the nose — relevant once the child starts putting things in their mouth
• RSV or other respiratory infections

Signs That Your Baby Has a Stuffy Nose

• Snuffling, snoring, or heavy breathing
• Difficulty nursing (baby frequently releases the breast to breathe)
• Restless sleep and frequent waking
• Visible mucus in the nose
• Baby seems irritable and uncomfortable
• Sneezing

Home Remedies That Help

1. Saline Drops (NaCl Drops)

Saline drops are the most important and safest remedy. They moisten and loosen mucus so your baby can breathe more easily.

How to do it:

1. Lay your baby on their back with their head tilted slightly back
2. Drop 1–2 drops of saline solution into each nostril
3. Wait 30 seconds — let the drops work
4. Your baby will likely sneeze out some mucus
5. Gently wipe the outside of the nose with a soft cloth

You can use saline drops as often as needed — they are completely safe. Use them:

• Before nursing or feeding
• Before bedtime
• When your baby seems most congested

2. Nasal Aspirator

A nasal aspirator can be used after saline drops to remove loosened mucus. There are different types:

• Mouth-suction aspirator — you gently suction with your mouth through a tube (with a filter). Effective and gentle.
• Rubber bulb syringe — squeeze, insert the tip gently into the nostril, then release to suction mucus
• Electric nasal aspirator — convenient but not necessary

Important:

• Don't suction too hard or too frequently — it can irritate the nasal membranes
• Always use saline drops first to loosen the mucus
• 2–3 times per day is usually enough
• Clean the aspirator thoroughly after each use

3. Humid Air

Dry indoor air worsens congestion. Ways to improve humidity:

• Humidifier in the bedroom (keep it clean to prevent mold)
• Drying rack with wet laundry in the room
• Ventilation — brief, effective airing improves air quality without cooling the room too much
• Avoid overheating — the bedroom should be kept at 64–68°F (18–20°C)

4. Elevated Head Position

Raising the head end of the mattress slightly (by placing a towel under the mattress — never under the baby) can help mucus drain down rather than pooling in the nose.

5. Nurse or Feed in an Upright Position

When your baby is congested, feeding in a more upright position can help. It makes it easier to breathe during the meal.

6. Steam Bath

A steamy bathroom can loosen mucus:

• Run a hot shower for a few minutes to create steam
• Sit with your baby in the steamy bathroom (not in the hot shower)
• 5–10 minutes is enough
• A nice routine before bedtime

What You Should NOT Do

• Don't use decongestant nasal sprays on babies under 1 year without medical advice
• Don't use menthol or eucalyptus products near your baby's face — they can irritate the airways
• Don't insert cotton swabs into the nose — it can damage the delicate nasal membrane
• Don't ignore persistent congestion — if it lasts more than 2 weeks, have a doctor evaluate it

Stuffy Nose and Breastfeeding

A stuffy nose can make breastfeeding a challenge. Your baby releases the breast to breathe, becomes frustrated and cries, which makes the nose even more congested.

Tips for nursing a congested baby:

• Apply saline drops 5–10 minutes before nursing
• Use the nasal aspirator after the saline drops
• Nurse in an upright position
• Take breaks and let your baby breathe
• Nurse for shorter periods more frequently
• Keep your baby upright for a while after nursing

Stuffy Nose at Night

Many parents find that congestion is worst at night. Ways to improve nighttime sleep:

• Give saline drops and use the aspirator before bedtime
• Have a humidifier in the room
• Check the room temperature (64–68°F / 18–20°C is ideal)
• Keep saline drops on the nightstand for quick middle-of-the-night use
• Raise the head end of the mattress slightly

When Should You See a Doctor?

Call your family doctor or urgent care if:

• Your baby has breathing difficulty — retracting between the ribs, flaring nostrils, or rapid breathing
• Fever above 100.4°F (38°C) in a baby under 3 months (seek urgent care)
• Fever above 102.2°F (39°C) that doesn't respond to fever reducers
• Your baby refuses to eat or shows clearly reduced intake over several hours
• Baby is limp and unresponsive — reacting little to stimuli
• Green or bloody mucus lasting several days
• Congestion lasting more than 2 weeks without improvement
• Baby snores loudly or has breathing pauses during sleep

Prevention

You can't prevent all colds, but you can reduce the risk:

• Handwashing — wash hands frequently, especially before handling your baby
• Avoid sick contacts — keep distance from people with colds
• Breastfeeding — breast milk provides antibodies that protect against infections
• Humidity — maintain good indoor humidity during winter
• Appropriate temperature — don't overheat indoor air
• Avoid smoke — secondhand smoke increases the risk of respiratory infections

Frequently Asked Questions

Is it dangerous that my baby snuffles at night?

Light snuffling is common and usually harmless, especially in newborns with narrow nasal passages. If your baby is otherwise feeding well, is active, and has no other symptoms, snuffling is generally not a cause for concern.

How often can I use saline drops?

As often as you need. Saline drops (NaCl 9 mg/ml) are safe and have no usage limit. Many parents use them 3–6 times daily during a cold, and before every meal and bedtime.

Can my baby choke on mucus in the nose?

Babies have a strong gag reflex and will normally manage mucus on their own. Saline drops and the nasal aspirator help remove excess mucus. In the rare case where a baby has serious breathing difficulties, call urgent care.

Should I buy an electric nasal aspirator?

A simple mouth-suction aspirator or rubber bulb syringe works just as well as an electric one and costs less. Choose whatever works for you and your baby. The most important thing is to use saline drops first.

Can a baby's stuffy nose be caused by allergy?

This is uncommon in babies under 1 year, but possible. Persistent runny nose without other cold symptoms, especially during pollen season or around animals, may suggest allergy. Bring it up with your pediatrician.

Read More

• Cold in Babies
• Fever in Children
• RSV in Children
• Sleep Tracker — Log sleep patterns during illness
• My Baby — Health — Log health events

Sources

• AAP — Common Cold in Children — Official American Academy of Pediatrics guidelines
• WHO — Acute Respiratory Infections in Children — Medical information
• CDC — Common Cold — Clinical guidelines