Is It a Common Cold or Something More?
St. Hope Pediatricians • December 13, 2023
0 minute read
is it the common cold or something else?

Your child will get a lot of colds as they grow up; in fact, they’ll most likely have about eight to ten colds in their first two years of life alone, sometimes more if they have older siblings. This isn’t that worrying, as the common cold is essentially harmless, but what if it’s something more? Some viruses and infections – like the Flu, RSV and COVID-19 – can look deceptively similar and have serious repercussions if not promptly and appropriately treated.

 

What's the Difference Between the Common Cold, the Flu, RSV and COVID-19?

 

The Common Cold


The common cold is a contagious yet mild viral infection of the upper respiratory system. Symptoms usually appear one to three days after one’s been infected. Unlike most other respiratory infections, it typically resolves itself within a week without pediatric intervention. Children with a cold experience:


  • Runny or stuffy nose
  • Sneezing
  • Mild cough
  • Sore throat
  • Decreased appetite
  • Watery eyes
  • Low-grade fever

 

Flu


Influenza (or the flu) tends to be more intense than the common cold. Symptoms develop quickly and can be more drastic, including a higher risk for complications and prolonged illness, especially in younger children. Children with the flu often exhibit a sudden onset of:


  • High fever
  • Headaches
  • Muscle aches
  • Earaches
  • Runny nose
  • Fatigue
  • Persistent cough
  • Occasional vomiting and diarrhea

 

Respiratory Syncytial Virus (RSV)


While RSV usually goes away on its own, it can be dangerous for infants and young children. The early symptoms of RSV develop gradually, only appearing four to six days after infection. They closely resemble those of a common cold, such as a runny or stuffy nose, decreased appetite, sneezing and a mild cough. However, if RSV persists, it can progress to more severe respiratory distress, with symptoms including:


  • Fever
  • Intense coughing
  • Wheezing
  • Difficulty breathing

 

Premature babies who contract RSV are also at high risk of developing complications from the virus, including bronchiolitis and pneumonia – both of which can impact their ability to breathe and thus require prompt hospitalization.

 

COVID-19


COVID-19 is a viral infection that shares some symptoms with the flu and common cold but is also more unique. It’s the most gradual of the three, with children not showing symptoms until about six days after being infected. In addition to respiratory symptoms like a cough, shortness of breath and a sore throat, COVID-19 may also present distinct signs such as:


  • Fatigue
  • Loss of taste or smell
  • Gastrointestinal issues

 

In severe cases, children may also experience:


  • Persistent chest pain or pressure
  • Nausea
  • Confusion
  • Bluish lips or face

 

When Should I Bring My Child in For a Sick Visit?

 

While the common cold typically resolves within a week without medical treatment, more serious illnesses tend to persist or worsen without appropriate care. If the symptoms your child is experiencing remain mild, contained to just a runny nose and sneezing, your child is likely dealing with a cold. However, if they start to develop a high fever that doesn’t respond to over-the-counter medications, severe coughing, signs of dehydration or difficulty breathing, you should bring them to a pediatrician immediately.

 

At St. Hope Pediatrics, we have the experience and expertise to provide an accurate diagnosis and determine if your child’s ailment could be something more serious like the flu, RSV or COVID-19.

 

You can learn more about sick visits and see our comprehensive list of signs your child may need to visit our pediatric wing here.

 

Our Experienced Pediatricians Can Give Houston Parents Peace of Mind

 

At St. Hope Pediatrics, our rapid lab services will quickly identify your child’s ailment, and our doctors can provide the prescriptions and home care advice required to manage their symptoms and promote a quick recovery. We’ll be with you every step of the way, providing your child with focused and compassionate medical attention so they can start feeling better sooner.

 

Learn more about how we’ve been helping families across the Houston metro area protect their children from viruses and illnesses on our website. And please don’t hesitate to schedule a sick visit if you have concerns or a general wellness appointment for your child today by calling (713) 778-1300.

Latest News from St. Hope

By Jeremy Goodie October 29, 2025
Boost immunity with fruits/veggies, lean protein, yogurt (probiotics), vitamin D, iron, and hydration—less sugar. Get guidance at St. Hope Pediatrics in Houston, TX.
By Jeremy Goodie October 29, 2025
Soothe flares with daily moisturizers, short lukewarm baths, fragrance-free products, and trigger tracking. Get a care plan at St. Hope Pediatrics in Houston, TX.
By Jeremy Goodie September 18, 2025
Teach proper handwashing—wet, lather 20 seconds, rinse, dry. Use songs and visuals to build healthy habits at home and school. St. Hope Pediatrics in Houston, TX.
By Jeremy Goodie September 18, 2025
Back-to-school anxiety is common—use routines, sleep, meet-the-teacher, practice drop-offs, and coping tools. St. Hope Pediatrics in Houston, TX can help.
By Jeremy Goodie August 14, 2025
St. Hope Pediatrics in Houston, TX explains common causes of frequent childhood nosebleeds and safe, effective ways to manage them at home.
By Jeremy Goodie August 14, 2025
St. Hope Pediatrics in Houston, TX shares practical ways to help tweens and teens build lifelong healthy hygiene habits with confidence.
By Jeremy Goodie July 17, 2025
Unexplained tummy trouble or skin issues? St. Hope Pediatrics in Houston, TX helps parents recognize food sensitivities and adjust diets safely.
By Jeremy Goodie July 17, 2025
Summer break shouldn’t mean slowing down. St. Hope Pediatrics in Houston, TX shares fun, simple ways to keep your child healthy and active all season.
By Jeremy Goodie June 24, 2025
Help your child adjust from school routines to summer freedom. St. Hope Pediatrics in Houston offers tips to support a smooth, healthy transition.
By Jeremy Goodie June 24, 2025
Know the signs of dehydration in kids and how to prevent it. St. Hope Pediatrics in Houston shares when to act and when it’s time to seek medical help.
More Posts