For an 8-month-old with a cold, your main tools are saline nose drops, gentle suctioning, extra fluids, and a cool-mist humidifier. Over-the-counter cough and cold medicines are not safe for children under 2 and should never be given at this age. The good news is that simple home care handles most infant colds effectively, and symptoms typically improve within 7 to 10 days.
No Cough or Cold Medicine Until Age 4
The FDA warns that children under 2 should not be given any cough and cold product containing a decongestant or antihistamine because serious, potentially life-threatening side effects can occur, including seizures, rapid heart rate, and death. Between 2004 and 2005, an estimated 1,519 children under age 2 were treated in U.S. emergency departments for adverse events tied to these medications. Manufacturers have since relabeled these products to say “do not use in children under 4 years of age.”
This includes liquid cold formulas, decongestant drops, and combination products. Many OTC cold medicines contain multiple active ingredients, which makes accidental overdosing easy. The safest approach is to skip the medicine aisle entirely and focus on the remedies below.
Clearing a Stuffy Nose With Saline and Suction
Nasal congestion is usually the most miserable part of a cold for a baby who can’t blow their own nose. Saline drops paired with a bulb syringe are the most effective way to help.
To use saline drops, lay your baby on their back and place 3 to 4 drops in each nostril using a dropper. Hold the baby with their head back for about a minute so the saline can thin the mucus. You can buy pre-made saline drops at any pharmacy or make your own by dissolving a quarter teaspoon of table salt in one cup of warm (not hot) tap water. Make a fresh batch each time and throw away any leftovers.
After the saline has had a minute to work, use a bulb syringe to suction the mucus out. Squeeze the air out of the bulb first, gently place the tip into one nostril, then release the bulb so it draws mucus in. Squeeze the contents onto a tissue and repeat on the other side. Limit suctioning to no more than four times a day to avoid irritating the nasal lining, and always suction before feeding rather than after, since doing it on a full stomach can cause vomiting. Clean the bulb syringe with warm soapy water after every use, squeezing soapy water through it several times and rinsing thoroughly.
Keeping Your Baby Hydrated
A cold can reduce your baby’s appetite, but staying hydrated helps thin mucus and supports recovery. At 8 months old, breast milk and formula remain the primary sources of fluids and nutrition. Offer shorter, more frequent feedings if your baby is too congested to nurse or drink from a bottle for long stretches.
Small sips of water are generally fine at this age since your baby is likely already eating some solid foods, but water alone isn’t enough to keep them nourished. Avoid juice and sports drinks. If your baby shows signs of dehydration, such as fewer wet diapers, no tears when crying, or a dry mouth, contact your pediatrician before trying oral rehydration solutions on your own.
Using a Cool-Mist Humidifier
Adding moisture to the air helps loosen congestion and soothes irritated nasal passages. The American Academy of Pediatrics recommends cool-mist humidifiers over warm-mist vaporizers because hot water units pose a burn risk. Place the humidifier near your baby’s crib but out of reach.
The key is keeping it clean. Bacteria and mold grow quickly in standing water, so clean and dry the humidifier every day. A dirty humidifier can spray mold spores and bacteria into the air, making congestion worse rather than better.
Fever and Pain Relief
If your baby is uncomfortable or running a fever, acetaminophen (Tylenol) is safe for infants over 8 weeks old. Ibuprofen (Advil, Motrin) is also an option once a baby is at least 6 months old. Since your baby is 8 months, both are available to you. Acetaminophen can be given every 4 to 6 hours, up to 5 times in 24 hours. Ibuprofen can be given every 6 to 8 hours, up to 4 times in 24 hours. Dosing is based on your baby’s weight, so check the product packaging or call your pediatrician for the right amount.
For an 8-month-old, a rectal temperature is the most accurate reading. A fever above 101°F (38.3°C) that lasts more than a day warrants a call to your pediatrician even without other symptoms. If your baby also has a cough, congestion, or diarrhea alongside the fever, call sooner based on how severe those symptoms are.
What Not to Give
Honey is a popular home remedy for coughs in older children and adults, but it is off-limits for any baby under 12 months. Honey can harbor spores of the bacterium that causes botulism. An infant’s gut flora is not mature enough to prevent these spores from germinating and producing toxin, which can lead to a rare but serious illness called infant botulism.
Also avoid any medicated nose drops or sprays unless specifically prescribed. Stick to plain saline only.
Safe Sleep During a Cold
It’s tempting to prop your baby up to help them breathe, but this is not safe. The AAP recommends that babies always sleep flat on their backs on an even, firm surface, even when congested. Propping a baby on towels, pillows, or an inclined mattress can cause the neck to bend forward or to the side, actually narrowing the airway and making breathing harder. The Consumer Product Safety Commission has banned inclined sleepers for exactly this reason.
Instead, clear your baby’s nose with saline and suction before bedtime. Running a cool-mist humidifier in the room during sleep can also help them breathe more comfortably through the night.
Signs That Need Immediate Attention
Most colds are mild and resolve on their own, but certain breathing changes in an infant signal something more serious. Watch for these signs:
- Retractions: the skin pulls inward below the neck, under the breastbone, or between the ribs with each breath
- Nasal flaring: the nostrils spread wide open during breathing
- Grunting: a short sound with each exhale, which is the body’s attempt to keep the lungs inflated
- Head bobbing: the neck muscles visibly strain or the head bobs with each breath
- Wheezing or stridor: a whistling, musical, or harsh sound during breathing
- Color changes: bluish tint around the mouth, inside the lips, or on the fingernails, or skin that looks pale or gray
- Unusual sleepiness: your baby is significantly harder to wake or much less alert than normal
Any of these signs means your baby needs medical evaluation right away. Cool, clammy skin and excessive sweating during breathing difficulty are also red flags.