Most baby coughs are caused by common colds and clear up on their own within a week or two. There are no safe over-the-counter cough medicines for babies, so treatment focuses on keeping your baby comfortable, clearing mucus, and adding moisture to the air. What you can safely do depends on your baby’s age.
Why Cough Medicine Isn’t an Option
The FDA does not recommend over-the-counter cough and cold medicines for children younger than 2 because they can cause serious, potentially life-threatening side effects, including slowed breathing. Manufacturers have voluntarily labeled these products with a stricter warning: “Do not use in children under 4 years of age.” Many of these products contain multiple active ingredients, which raises the risk of accidental overdose if a parent combines two products without realizing they share the same drug. The bottom line: no drugstore cough or cold medicine belongs in your baby’s treatment plan.
Clearing Your Baby’s Nose With Saline and Suction
Babies breathe through their noses, so a stuffy nose often makes coughing worse, especially during feeding and sleep. Saline drops and a bulb syringe are the most effective tools you have, and suctioning right before meals and naps helps your baby eat and sleep more easily. Limit suctioning to about four times a day, which is roughly how much a baby’s nasal passages can tolerate.
To suction safely, lay your baby on their back facing the ceiling. If you’re alone, swaddle their arms so they can’t grab at the syringe. Place 3 to 4 drops of saline in each nostril and wait about a minute to let the mucus loosen. Then squeeze the air out of the bulb syringe with your thumb, gently insert the tip into the nostril until it seals, and slowly release your thumb. The suction will pull mucus into the bulb. Squeeze the contents onto a tissue and repeat on the other side, going back and forth a few times if needed.
After each use, wash the bulb syringe with warm soapy water, squeezing the soapy water in and out, and let it air dry completely. Skipping this step allows mold and mildew to build up inside the bulb.
Humidity and Warm Mist
Dry air irritates inflamed airways, so running a humidifier in your baby’s room can help ease coughing. Always use a cool-mist humidifier for children. Warm-mist humidifiers and steam vaporizers pose a burn risk if your baby gets too close or the unit tips over. Clean the humidifier regularly to prevent bacteria and mold from growing in standing water and getting dispersed into the air.
During a coughing fit, you can sit in the bathroom with your baby while a hot shower runs with the door closed. The warm, moist air can help soothe the airways. If your baby has a barky, seal-like cough (a hallmark of croup), stepping outside into cool night air for a few minutes is another common approach parents find helpful.
Fluids and Feeding
Extra fluids help thin mucus and prevent dehydration, especially if your baby has a fever. For babies under 6 months, that means offering breast milk or formula more frequently. There is no need to supplement with water at this age. For babies over 6 months who have started solids, small sips of water between feedings can help.
Why Honey Is Dangerous Before Age 1
Honey is a well-known cough remedy for older children, but it is off-limits for any baby under 12 months. Even tiny amounts, such as a drop on a pacifier, can cause infant botulism, a rare but life-threatening condition. The botulinum toxin blocks nerve signals to muscles, causing paralysis that can affect breathing. There are no safe exceptions: no honey in any form before your baby’s first birthday.
You may see agave nectar suggested as an alternative. A clinical trial published in JAMA Pediatrics tested agave nectar against a placebo and no treatment in children ages 2 to 47 months with acute coughs. Both agave nectar and the placebo performed better than doing nothing, but agave nectar offered no benefit beyond the placebo itself. In other words, it worked no better than a sugar syrup, and the improvement parents noticed was likely a placebo effect.
What You Can Do by Age
- 0 to 3 months: Saline drops, gentle suctioning, cool-mist humidifier, and frequent breastfeeding or formula. Call your pediatrician for any fever at all in this age group, and for any cough that lasts more than a few days.
- 3 to 6 months: Same comfort measures. If your baby develops a fever above 100.4°F (38°C), or seems unusually sick even with a lower temperature, call your doctor. Acetaminophen (such as Tylenol) can be used for fevers above 102°F (39°C) at the dose your pediatrician recommends. Avoid ibuprofen until 6 months.
- 6 to 12 months: All of the above, plus small amounts of water and ibuprofen as an option for fever. Call your doctor if a fever above 100.4°F lasts more than one day or if the cough comes with other symptoms that concern you.
- 12 months and older: Half a teaspoon of honey before bed can help soothe a cough. All previous comfort measures still apply.
Signs Your Baby Needs Immediate Help
Most coughs are harmless, but some signal that your baby is struggling to breathe. Watch for these specific signs of respiratory distress:
- Retractions: The skin pulls inward below the neck, under the breastbone, or between the ribs with each breath. Your baby’s chest will look like it’s sinking in as they inhale.
- Nasal flaring: The nostrils spread wide open with each breath, a sign your baby is working harder than normal to get air.
- Grunting: A short, low sound with every exhale, which is the body’s attempt to keep the lungs open.
- Head bobbing or neck muscle use: The neck muscles visibly strain, or your baby’s head bobs with each breath.
- Color changes: A bluish tint around the mouth, inside the lips, or on the fingernails means oxygen levels are dropping. Pale or grayish skin is also a warning sign.
- Changes in alertness: If your baby becomes unusually sleepy, limp, or hard to wake, low oxygen may be the cause.
- Rapid breathing or fast heart rate: Both can indicate your baby isn’t getting enough oxygen.
Any of these signs warrants immediate medical attention. A cough paired with a fever in a baby under 3 months old also needs a same-day call to your pediatrician, regardless of how mild the cough seems.