Insights from Dr.Clarisse Casilang, pediatrician at Rady Children’s Hospital Orange County (Rady Children’s)
Key takeaways
- Most childhood coughs are viral and temporary: Common colds frequently cause coughs in kids, especially during winter, and it’s normal for young children to have multiple colds each year as their immune systems develop.
- Duration and breathing difficulties are the biggest red flags: A cough lasting longer than 3–4 weeks, or any signs of trouble breathing (fast belly breathing, nostril flaring), should prompt a visit to a pediatrician for evaluation.
- Use supportive care instead of cough medicines: Hydrate your child, use humidifiers and saline, suction infants’ noses, and give honey to children over one—these methods help more than OTC cough suppressants, which aren’t recommended for young kids.
Child has a cough? Here’s what to know
A child’s cough can be alarming, especially when it comes on suddenly or lingers longer than expected. As a parent or caregiver, it’s natural to wonder: Is this just a common cold or something more serious? The truth is that not all coughs are created equal. Some are mild and part of the body’s natural healing process, while others may signal an underlying illness that needs medical attention.
Here, Dr. Clarisse Casilang, Board Certified Pediatrician with Rady Children’s and a Fellow of the American Academy of Pediatrics (AAP), discusses the different types of coughs, when to worry, and what steps you can take to help your child feel better.
Common reasons a cough develops
Coughing is a natural and important reflex that helps children clear mucus, debris, or irritants from their airways. In urgent care settings, it’s one of the most common symptoms seen, and it’s often not a cause for alarm.
Most coughs in children are due to viral upper respiratory infections, such as the common cold, which can also cause congestion, runny nose, and sore throat. Common viruses include rhinovirus, enterovirus, and adenovirus. These illnesses are especially frequent in colder months when children are indoors and in close contact with others. Preschool-aged kids typically have six to eight colds per year, and the frequency decreases as their immune systems mature.
“The time we do worry is if the cough doesn’t resolve after about three to four weeks. If it’s been about a month or two and your child still has a cough, there is actually a whole line of reasons for it,” states Dr. Casilang. “Sometimes it can be due to asthma. Or, it might be seasonal allergies. It can also be a habitual cough. I would say the most important thing is looking at the duration of your child’s cough. So, if it’s lasting three to four weeks, that warrants a workup or a follow-up with your primary care doctor.”
Tips to ease cough and associated symptoms
When a child develops a cough, it’s often accompanied by other symptoms like a runny nose or nasal congestion. For babies under one, using saline drops or spray followed by gentle nasal suction—especially before meals and sleep—can help clear their airways since infants are nose breathers. A humidifier at night and proper hydration are also helpful for thinning mucus and easing congestion.
Per Dr. Casilang, one general recommendation is fluid intake of eight ounces per year of age, up to 64 ounces for children over eight. For children over one year old, parents can use honey to soothe a cough, but they should avoid giving it to babies under one because of the risk of botulism. Older kids may benefit from cough drops, lozenges, or chest rubs like Vicks. Most importantly, parents should watch for signs of worsening symptoms, particularly difficulty breathing, which may indicate a more serious issue.
“For example, if their abdominal area is moving up and down really fast, or their nose is flaring up and down really fast, those are the signals they’re really having trouble breathing. That would always be an emergency and a reason to get evaluated,” she advises.
What about cough medicines? Proceed cautiously
Over-the-counter (OTC) cough medicines often claim to suppress coughing, but because coughing is a helpful reflex, especially in young children, suppressing it isn’t always beneficial.In fact, doctors don’t recommend many OTC cough remedies for children under six because studies show they largely don’t work and can be harmful.
Instead, soothing options like the above-mentioned honey are often more effective. For children with a fever, age-appropriate doses of Tylenol or ibuprofen—based on weight—are recommended. However, parents should be cautious with combination medications, as they can contain overlapping ingredients like acetaminophen (Tylenol), increasing the risk of accidental overdose. Saline nasal sprays are another safe and helpful OTC option to relieve congestion.
“Typically, these OTC medicines are not actually needed. Kids are very resilient and their immune systems are really strong. A lot of times it just comes down to observing your child. If those worrisome signs aren’t there, the cough will often clear on its own,” assures Dr. Casilang.
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