How to Relieve Nasal Congestion in Infants

A congested baby is one of those things that sounds small but feels enormous at 3am. Babies are largely nose breathers for the first few months of life, so even a mild stuffy nose can make feeding, sleeping and settling much harder than it would for an older child or adult. The good news is that most infant congestion is manageable at home with a few simple, safe techniques. Here’s what actually helps, what doesn’t, and when it’s time to call your GP, health visitor or paediatrician.

Why Babies Get So Congested, So Easily

A newborn’s nasal passages are tiny, roughly the width of a straw, so it doesn’t take much mucus or swelling to block them noticeably. A few things make this worse:

• Immature airways. Their nasal passages are narrow and haven’t “toughened up” yet, so even normal amounts of mucus feel like a lot.
• Colds and viruses. It’s completely normal for babies to catch several colds in their first year or two, especially if they have older siblings or attend nursery. Congestion is usually the first sign.
• Dry indoor air. Central heating in winter can dry out the lining of the nose, making mucus thicker and stickier.
• Allergies or irritants. Less common in very young babies, but smoke, strong perfumes, or dust can trigger a runny or stuffy nose.
• Reflux. Some babies get mild nasal congestion related to reflux, particularly if it seems to come and go with feeds.

Safe Ways to Ease Nasal Congestion at Home

1. Start with Saline Drops or Spray

Saline (salt water) drops are genuinely the first thing to reach for. They loosen and thin dried or thick mucus so it’s easier to clear, and they’re safe to use as often as needed. You can buy infant saline drops or sprays at any pharmacy. Lay your baby on their back, tilt their head very slightly, and put one or two drops into each nostril. Wait about 30 to 60 seconds before feeding or suctioning, so the saline has time to soften the mucus.

2. Suction Gently, After Saline

Once the mucus has loosened, a bulb syringe or a nasal aspirator (the tube-style ones you suck through, like a NoseFrida, are often easier to control and many parents find them more effective than bulb syringes) can clear it out. A few tips:

• Squeeze the bulb before inserting it, then release gently once it’s just inside the nostril.
• Keep sessions short, one or two rounds per nostril is usually enough.
• Limit suctioning to three or four times a day. Doing it too often can irritate the delicate lining of the nose and actually make swelling worse.
• Clean the syringe or aspirator thoroughly after each use to avoid growing bacteria in it.

3. Run a Cool-Mist Humidifier

Moist air helps keep mucus loose rather than thick and crusty. A cool-mist humidifier in the bedroom overnight is the safer option for infants, since warm-mist or steam vaporisers carry a real burn risk if a curious toddler (or a wobbly parent in the dark) knocks them over. Whichever you use, clean it regularly, ideally daily, because damp humidifier tanks are a perfect breeding ground for mould and bacteria, which you obviously don’t want your baby breathing in.

4. Try a Steamy Bathroom

Running a hot shower and sitting in the closed bathroom with your baby for five to ten minutes (not in the shower itself, just in the steam) can loosen congestion nicely before a feed or nap. Keep your baby well away from the hot water and never leave them unattended.

5. Keep Them Upright During Awake Time

Holding your baby upright against your chest, or using a carrier for a while, can help mucus drain and make breathing more comfortable. A quick note on sleep positioning: current safe sleep guidance recommends babies sleep flat on their back on a firm, flat surface, with nothing else in the cot. Sleep positioners, wedges and inclined sleepers are not recommended by paediatric bodies because they’ve been linked to an increased risk of suffocation and are not proven to reduce congestion or reflux. If your baby’s congestion is disturbing sleep, it’s worth mentioning to your health visitor or GP rather than adjusting the cot yourself.

6. Keep Up Feeds and Fluids

Staying hydrated helps keep mucus thinner and easier to clear. If your baby is exclusively breastfed, more frequent, shorter feeds can be easier for them when their nose is blocked, since sucking and breathing through a stuffy nose at the same time is genuinely hard work for a small baby. Some parents put a drop of breast milk in the nose, believing it helps fight infection, but there isn’t good evidence either way for this, so treat it as a folk remedy rather than a proven treatment, and use saline drops as your main option.

7. Slow Down Feeds and Take Breaks

If congestion is making feeding harder, offer smaller, more frequent feeds, and pause to let your baby catch their breath and swallow rather than pushing through a full feed in one go. Clearing the nose with saline just before a feed often makes a real difference.

What to Avoid

A few well-meaning remedies are best left alone with young babies:

• Over-the-counter cough and cold medicines. These are not recommended for children under six, and in many countries not for under twelve, because they don’t work well in young children and carry a risk of side effects.
• Menthol or vapour rubs. Products containing menthol, camphor or eucalyptus (like some vapour rubs) shouldn’t be used on or near babies under two, and even then only ones specifically formulated for young children. They can irritate the airway rather than help it.
• Honey. Never give honey to a baby under 12 months, in the nose, in feeds, or anywhere else, because of the risk of infant botulism.
• Essential oil diffusers in the nursery. Many aren’t tested for safety around infants and can irritate a baby’s airway rather than soothe it.

When to Call the Doctor

Most infant congestion clears up on its own within a week or two, alongside the rest of a cold. Contact your GP, health visitor or out-of-hours service if you notice any of the following:

• Your baby is under 3 months old and has a temperature of 38°C (100.4°F) or higher. This always warrants a same-day call to a doctor, regardless of how well they otherwise seem.
• Signs of real breathing difficulty: fast or noisy breathing, grunting with each breath, flaring nostrils, or the skin between the ribs pulling in with each breath.
• Bluish tinge around the lips or face. Seek emergency help immediately.
• Feeding poorly or refusing feeds, especially with fewer wet nappies than usual, which can be a sign of dehydration.
• Congestion lasting more than two to three weeks, or getting worse rather than better.
• Pulling at the ears, unusual fussiness, or a fever that returns after improving, which can sometimes point to an ear infection.

You know your baby’s normal better than anyone else. If something feels off, even if you can’t quite put your finger on why, it’s always worth getting them checked rather than waiting it out.

The Bottom Line

Saline drops, gentle suction, a cool-mist humidifier and plenty of upright cuddles will see most babies through a stuffy patch without much trouble. Give it a few days, keep an eye on feeding and breathing, and don’t be afraid to ring your GP or health visitor if anything seems wrong. Congestion is one of those baby milestones every parent goes through, and it does pass.

If you found this article helpful, read our other articles on baby’s health and wellbeing:

• Heat Rash Remedies for Babies