The safest and most effective way to help a baby’s stuffy nose is with saline drops and gentle suction, paired with a cool mist humidifier to keep air moist. Most infant congestion clears within a week or two without medication, and in fact, over-the-counter cold medicines are not safe for babies. The good news is that a few simple, low-tech strategies can make your baby noticeably more comfortable within minutes.
Saline Drops and Nasal Suction
This is the single most effective tool you have. Saline (saltwater) drops loosen the thick mucus inside your baby’s tiny nasal passages, and suction removes it. You can buy pre-made saline drops at any pharmacy, or make your own by dissolving a quarter teaspoon of non-iodized salt in eight ounces of distilled or boiled (then cooled) water.
Lay your baby on their back with a rolled towel gently supporting under the shoulders so the head tilts slightly back. Place two or three drops in each nostril and wait about 30 to 60 seconds for the saline to thin the mucus. Then use a rubber bulb syringe or a battery-powered nasal aspirator to suction each nostril. Squeeze the bulb before putting the tip in the nostril, then release slowly to create suction. Clean the syringe thoroughly with warm soapy water after every use.
Try to do this before feedings and before sleep, when a clear nose matters most. Limit suctioning to two or three times a day. Overdoing it can irritate the delicate lining of the nose and actually cause more swelling.
Use a Cool Mist Humidifier
Dry air thickens mucus and makes congestion worse. A humidifier adds moisture back into the room, which helps keep nasal passages from drying out. The American Academy of Pediatrics recommends cool mist humidifiers over warm mist vaporizers because vaporizers can cause burns if a child gets too close to the steam or knocks over the device.
Place the humidifier near (but not directly next to) the crib, and run it while your baby sleeps. Keeping the room at roughly 40 to 60 percent humidity is the sweet spot. Proper cleaning is essential, though, because a dirty humidifier becomes a breeding ground for mold and bacteria. Empty the water tank and dry the interior surfaces every time you turn it off, and add fresh water daily. Every two to three days of use, soak the tank and all water-exposed parts in a solution of one part bleach to nine parts water. Using filtered or distilled water instead of tap water also reduces mineral buildup that feeds microorganisms.
Steam From a Hot Shower
If you don’t have a humidifier, a steamy bathroom works as a short-term substitute. Run a hot shower with the bathroom door closed for a few minutes, then sit in the room with your baby (not in the shower) for 10 to 15 minutes. The warm, moist air helps loosen mucus the same way a humidifier does. This can be especially helpful right before a feeding or nap.
Keep Feedings Going
Congestion makes it harder for babies to breathe through their nose while feeding, so they may nurse for shorter stretches, pull off the breast or bottle frequently, or refuse to eat. Offer smaller, more frequent feedings to keep them hydrated. For newborns through four months, fewer than six wet diapers in a day is a sign of dehydration. For babies four months and older, fewer than three wet diapers a day signals the same concern.
Clearing the nose with saline and suction right before a feeding session can make a noticeable difference in how well your baby latches and how long they stay comfortable eating.
Safe Sleep With a Stuffy Nose
It’s tempting to prop up your baby’s mattress or put them in a swing to help them breathe, but current safe sleep guidelines are clear: babies should always sleep on a firm, non-inclined surface. Inclined sleepers, car seats, swings, and bouncy seats all increase the risk of suffocation and SIDS. If your baby falls asleep in a car seat or swing, move them to their flat crib or bassinet as soon as possible.
Instead of elevating the sleep surface, run the humidifier in the room and suction the nose right before laying your baby down. These two steps together typically provide enough relief for your baby to sleep.
What Not to Give Your Baby
Over-the-counter cough and cold medicines are not safe for infants. The FDA warns against using them in children younger than two because of the risk of serious, potentially life-threatening side effects. Manufacturers have voluntarily updated labels to recommend against use in children under four. Homeopathic cough and cold products carry the same warning. None of these products have proven benefits in young children.
Standard Vicks VapoRub is also off-limits for babies under two. It contains camphor, which can irritate an infant’s airways and worsen breathing difficulty. Swallowing even a small amount of camphor can cause vomiting and, in severe cases, can be life-threatening for toddlers. For babies older than three months, Vicks does make a camphor-free product called BabyRub, which contains fragrances and aloe in a petroleum jelly base. It may provide mild comfort, but it won’t actively decongest the nose the way saline and suction will.
Signs That Need Medical Attention
Most stuffy noses are caused by common viruses and resolve on their own. But a few specific signs suggest your baby is working too hard to breathe. Nasal flaring, where the nostrils visibly widen with each breath, is one of the earliest indicators of respiratory distress in infants. Watch also for the skin pulling inward between the ribs, below the ribcage, or at the base of the throat during breathing. These retractions mean your baby is using extra muscles to get air in.
Other reasons to seek prompt care include a fever in a baby under three months (any fever at all), breathing faster than 60 breaths per minute, a bluish tint around the lips or fingernails, refusal to feed across multiple sessions, or significantly fewer wet diapers than usual. Congestion that lasts longer than 10 to 14 days without improvement, or that comes with thick green or yellow discharge and a new fever, may point to a sinus or ear infection that needs treatment.