COVID-19, Flu, RSV, Cold, or Allergies? Find Out What's Causing Your Child's Symptoms
It's a confusing time with so many respiratory bugs making the rounds. But don't worry — you're not alone in trying to figure out what's got your little one feeling under the weather. Allergies, the common cold, the flu, RSV, and COVID-19 can all show up with symptoms like sneezing, congestion and runny nose. Understanding the differences between these common respiratory illnesses is key to helping your child feel better swiftly.
Allergies vs Covid-19 vs Colds vs RSV vs Flu? The Differences Between Children’s Upper Respiratory Conditions
It's a tough call, isn't it? Allergies, COVID-19, the common cold, the flu, and RSV can all look similar in kids, which can be a stressful head-scratcher. Let’s break down some of the key differences:
Fever or chills
Seasonal Allergies2: Uncommon
COVID-191: Typical
Common Cold4: Typical(usually low-grade/mild) Chills are uncommon
Flu5,6: Varies (not everyone with the flu will have a fever), Chills are common
RSV7: Typical
Cough
Seasonal Allergies2: Rare
COVID-191: Typical
Common Cold4: Mild to Moderate
Flu5,6: Typical (can be severe cough)
RSV7: Typical
Shortness of breath or difficulty breathing
Seasonal Allergies2: Uncommon (asthma can get worse)
COVID-191: Sometimes
Common Cold4: Uncommon
Flu5,6: Sometimes
RSV7: Sometimes (wheezing)
Sore throat
Seasonal Allergies2: Sometimes (usually mild)
COVID-191: Typical
Common Cold4: Typical
Flu5,6: Sometimes
RSV7: Sometimes
Congestion or runny nose
Seasonal Allergies2: Typical
COVID-191: Typical
Common Cold4: Typical
Flu5,6: Typical
RSV7: Typical
New loss of taste or smell
Seasonal Allergies2: Sometimes (because of congestion)
COVID-191: Sometimes
Common Cold4: Uncommon
Flu5,6: Uncommon (more frequent with COVID)
RSV7: Uncommon
Fatigue
Seasonal Allergies2: Sometimes
COVID-191: Very Typical
Common Cold4: Varies
Flu5,6: Very Typical
RSV7: Typical
Muscle and body aches
Seasonal Allergies2: Uncommon
COVID-191: Very Typical
Common Cold4: Sometimes (often mild)
Flu5,6: Very Typical
RSV7: Uncommon
Headache
Seasonal Allergies2: Uncommon
COVID-191: Typical
Common Cold4: Varies
Flu5,6: Typical
RSV7: Uncommon
Nausea or vomiting
Seasonal Allergies2: Uncommon
COVID-191: Varies (loss of taste/smell can exacerbate)
Common Cold4: Uncommon
Flu5,6: Sometimes
RSV7: Sometimes
Diarrhea
Seasonal Allergies2: Uncommon
COVID-191: Sometimes
Common Cold4: Varies
Flu5,6: Sometimes (more common in children than adults)
RSV7: Sometimes
Loss of appetite
Seasonal Allergies2: Uncommon
COVID-191: Sometimes
Common Cold4: Varies
Flu5,6: Typical
RSV7: Typical
Sneezing
Seasonal Allergies2: Typical
COVID-191: Uncommon
Common Cold4: Typical
Flu5,6: Uncommon
RSV7: Typical
Watery or itchy eyes
Seasonal Allergies2: Typical
COVID-191: Uncommon
Common Cold4: Uncommon
Flu5,6: Uncommon
RSV7: Uncommon
Children’s Allergy Symptoms
Allergies in kids can stir up quite a storm of symptoms, from itchy, watery eyes to sneezing fits and the sniffles. Unlike the flu or COVID-19, allergies usually don't bring fever or body aches along for the ride. Common allergy symptoms in kids include:
Runny or stuffy nose
Sneezing
Itching and watery eyes
Itchy nose or throat
The time of year can be a clue to help determine the cause of your child’s symptoms. Seasonal allergies are most common when pollen levels are high. Allergy symptoms also often stick around if the allergen or trigger is still present which is usually much longer than cold or flu symptoms.
Children’s Cold Symptoms
The common cold is caused by a viral visitor to the nose and throat, often leaving a runny nose, sore throat, and mild fever in its wake. It's a pesky but usually not serious bug that your little one's body can tackle on its own. If the symptoms are sticking around or seem severe, a visit to the pediatrician is a smart move.
Children’s Flu Symptoms
The flu is a tricky bug, caused by influenza viruses that can really throw a wrench in your child's day. Symptoms might include fever, chills, body aches, a cough, sore throat, congestion, and fatigue. Vomiting and diarrhea can also show up in children. It's not something to take lightly, especially for little ones under five years old, as it can lead to more serious complications.
If your child is feeling under the weather, it's best to have them checked out by a pediatrician. There are antiviral meds that can help them get back on their feet and reduce the risk of complications.
Children’s Covid-19 Symptoms
Generally, COVID-19 symptoms in kids and babies are milder than those in adults, and some kids who are infected may not have any symptoms.9 Keep an eye out for things like fever, cough, body aches, and gastrointestinal problems (like bellyache, nausea, vomiting, and diarrhea). Testing is the best way to know for sure if your child has COVID-19. If your little one is feeling poorly, especially with multiple symptoms or if they're severe, it's time to touch base with your pediatrician.
Children’s RSV Symptoms
RSV, or respiratory syncytial virus, is a pretty common bug that can make your child feel under the weather. It often shows up with symptoms like a cough, wheezing, fever, and trouble breathing, and can even put a damper on their appetite.7
Since RSV is more likely to affect the littlest ones, like infants, and can be more serious if your child has other health issues, it's always a good idea to have them checked out by a doctor if you're concerned.
Treating Your Child’s Respiratory Symptoms
The approach to treatment will depend on the root cause.
Allergies? Children’s ZYRTEC® allergy relief products can be a game-changer, tackling those itchy, watery eyes, sneezes, and runny noses.
The common cold? Over-the-counter remedies like Children’s TYLENOL® Cold + Flu Liquid Medicine can help your little one battle that cough, sore throat, and congestion.
If it's the flu, antiviral meds might be in the cards to keep complications at bay.
RSV is usually minor and similar to a cold and symptoms can be treated with over the counter medications. However, RSV can be serious for babies, younger children and older adults.The takeaway? The right treatment is key to your child's recovery. Always loop in a healthcare professional for the full scoop on what's ailing your child and the best way to help them bounce back.
When To See a Doctor
Remember, kids can show different signs when a respiratory virus is getting serious. Get help right away if your child has8:
Fast breathing or trouble breathing
Bluish lips or face
Ribs that pull in with each breath
Chest pain
Severe muscle pain (for example, child refuses to walk)
Dehydration (no urine for eight hours, dry mouth, no tears when crying)
Lack of alertness or interacting when awake
Seizures
Fever above 104 degrees Fahrenheit that is not controlled by fever-reducing medicine
Any fever in children younger than 12 weeks
Fever or cough that improves but then returns or worsens
Don’t hesitate to reach out to your doctor at any point if your child isn't feeling well or doesn't seem to be improving. It’s always better to be safe when it comes to your little one’s health and well-being.
References
- https://www.cdc.gov/covid/signs-symptoms/index.html
- https://acaai.org/allergies/allergies-101/who-gets-allergies/children/
- Melo MM, Neta MMR, Neto ARS, Carvalho ARB, Magalhães RLB, Valle ARMC, Ferreira JHL, Aliaga KMJ,Moura MEB,Freitas DRJ.Symptoms of COVID-19 in children.Braz J Med Biol Res. 2022 Jun 13;55:e12038.doi:10.1590/1414-431X2022e12038.PMID:35703681;PMCID:PMC9200047.,
- https://www.cdc.gov/common-cold/about/index.html
- https://www.cdc.gov/flu/symptoms/symptoms.htm
- https://www.cdc.gov/flu/symptoms/flu-vs-covid19.htm
- https://www.cdc.gov/rsv/symptoms/index.html
- https://www.cdc.gov/respiratory-viruses/risk-factors/young-children.html
- https://www.hopkinsmedicine.org/health/conditions-and-diseases/coronavirus/coronavirus-in-babies-and-children
Links to other parties’ articles and websites are provided for convenience only. Kenvue is not responsible for their content.
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