Fever, mucus, coughing… what if some of the symptoms parents worry about most actually have an important purpose? A fever helps coordinate the immune response. Mucus traps unwanted germs and particles. And coughing helps clear the airways.
These aren't just annoying symptoms. They're often part of the body's natural defense system!
Dr. Drake breaks down the science behind sickness, the nervous system–immune system connection, and how to know when your child needs extra support.
Parents, we've all been there. It's the middle of the night, and you wake up to find your child tossing and turning, their cheeks flushed, and their forehead warmer than usual. You grab the thermometer, and sure enough, they've got a fever.
Your first instinct? Figure out how to bring that temperature down and help them feel better.
But what if that fever isn't actually the problem? What if it's part of the solution?
What if the very symptoms we tend to worry about most, like fevers, runny noses, and coughing, are actually signs that your child's body is responding to an illness exactly the way it's supposed to?
Today, I want to walk you through the science behind some of these common symptoms, explain the important relationship between the nervous system and immune system, and help you better understand when to support the body's natural defenses and when your child needs additional medical attention.
Because here's something I wish more parents understood. Getting sick isn't necessarily a sign of a weak immune system. It's often an opportunity to see the immune system in action.
And one of the best examples of that is a fever.
Most of us grew up believing that a fever was something we needed to get rid of as quickly as possible. The temperature goes up, we reach for the medicine, and we feel better once that number starts coming down.
But when you understand what's actually happening inside the body, you begin to look at fevers a little differently.
First, let's talk about what actually creates a fever.
Your brain contains an area called the hypothalamus, which serves as the body's internal thermostat. It helps regulate body temperature and works closely with the nervous system to maintain balance.
When your child's immune system recognizes an infection, it releases chemical messengers that communicate with the brain. The hypothalamus responds by increasing the body's temperature.
That increase isn't random. It's a coordinated response involving the brain, nervous system, and immune system.
And there's a reason it happens.
Certain viruses and bacteria have a harder time multiplying at elevated temperatures. At the same time, the warmer environment influences how immune cells function, helping coordinate the body's response to the infection.
Think of it almost like sending out an alert to the immune system. There's an infection that needs attention, and the body's defenses are being called into action.
Here's what I find so fascinating. The fever isn't the illness itself. It's one of the ways the body responds to the illness.
That's an important distinction because we sometimes become so focused on getting rid of the symptom that we forget what the symptom is accomplishing.
Now, does that mean every fever should be left alone? Absolutely not.
There's a big difference between understanding the benefits of a fever and ignoring a child who needs help.
For a generally healthy child who's drinking fluids, responding normally, and resting comfortably, a moderate fever doesn't always need to be reduced simply because the thermometer shows an elevated number.
That said, certain situations do warrant medical attention:
Any fever of 100.4°F or higher in an infant under 3 months old.
Fever of 102.2°F or higher in children 3–6 months old.
Fever lasting more than 48 hours in children 6–24 months old, particularly without other symptoms.
Fever lasting more than 3 days in older children.
Any fever over 104°F
And regardless of temperature, difficulty breathing, dehydration, unusual lethargy, or a child who appears seriously ill warrants immediate attention.
Remember, it's not just about the number on the thermometer. It's about how your child is doing overall.
Now, fever isn't the only symptom that has a purpose.
Let's talk about mucus.
And if you have young kids, you already know how much mucus one little human being can produce!
The runny nose that seems to last forever, the congestion, the drainage down the back of the throat, and the cough that often comes along with it.
We tend to think of all that mucus as something we need to dry up and get rid of.
But mucus is actually one of the body's built-in protective systems.
Your respiratory tract is lined with mucus that helps trap viruses, bacteria, dust, allergens, and other particles that enter through the nose and mouth.
Tiny hair-like structures called cilia help move that mucus along so those trapped particles can be cleared from the airways.
When your child develops a respiratory infection, inflammation increases mucus production. That's part of why their nose starts running and they become congested.
And coughing and sneezing are protective reflexes that help clear irritants and mucus from the respiratory system.
So the runny nose and cough that are driving everyone crazy often have an important job to do.
Of course, not every cough is harmless, and more mucus doesn't automatically mean a stronger immune system. Symptoms that worsen, interfere with breathing, or continue longer than expected need to be evaluated.
But understanding the reason behind these responses helps us make better decisions about how to care for our kids.
And this brings us to another piece of the conversation that I think is incredibly important.
How does the nervous system fit into all of this?
If you've been following us for any length of time, you know that at Innate Family Chiropractic, we're always talking about the nervous system.
And here's why.
The nervous system and immune system are not two completely separate systems operating independently of one another.
They're constantly exchanging information.
Your nervous system helps regulate temperature, breathing, circulation, digestion, and the body's response to stress.
And through connections involving the autonomic nervous system, the vagus nerve, and chemical signaling pathways, it also participates in regulating inflammation and communicating with the immune system.
The immune system sends signals back to the brain as well, influencing things like fatigue, appetite, sleep, and body temperature during illness.
Have you ever noticed how your child suddenly wants to sleep more, doesn't have much of an appetite, or just wants to lie on the couch when they're sick?
Those changes aren't random either.
The immune response produces signals that influence the brain, shifting the body's priorities toward rest and recovery.
And that's a pretty remarkable example of how interconnected these systems really are.
Now, let's take this one step further.
One of the questions we hear from parents is, "Why does my child seem to get sick all the time?"
Maybe they're dealing with one cold after another. Maybe they seem to take longer to recover than their siblings. Or maybe it feels like every time they finally get over something, another illness comes along.
First, we have to recognize that childhood illnesses are normal, especially when kids are exposed to new germs at daycare, school, or other activities.
The immune system learns to recognize different pathogens through exposure and infection, developing immune memory that helps protect against future encounters.
But the number of illnesses alone doesn't tell us everything about a child's immune health.
We also want to pay attention to the bigger picture.
Are they growing and developing normally? Are they recovering between illnesses? Are there ongoing concerns with sleep, energy, or overall health?
These are all important pieces of understanding how a child is doing.
And at Innate Family Chiropractic, taking that bigger-picture approach is a huge part of what we do.
Our focus is on neurologically-focused chiropractic care, which means we're looking beyond an isolated symptom and evaluating patterns of stress and nervous system function.
We start by listening to your child's story.
We want to understand their health history, the challenges they've experienced, and the goals you have for their health.
We then use our INSiGHT Scans, along with our neuro-tonal assessment, to evaluate certain patterns of nervous system activity and help guide a personalized chiropractic care plan.
These assessments don't measure immune strength or diagnose infections. They give us information about aspects of nervous system function that we use in our approach to care.
Now, I want to come back to something really important.
When should you be concerned about a fever?
Because I never want parents to walk away from a conversation about the benefits of fever thinking that every fever is safe or that medical care should always be avoided.
In babies younger than three months, a temperature of 100.4 degrees Fahrenheit or higher needs immediate medical evaluation.
For older children, we need to consider more than just the temperature.
Is your child alert and responding to you? Are they drinking fluids and urinating normally? Is their breathing comfortable? Do they seem to improve between periods of fever?
Those observations give you important information.
But if your child is having difficulty breathing, showing signs of dehydration, or becoming unusually difficult to wake, that's a situation that needs medical attention.
Repeated temperatures above 104 degrees, a fever that continues for several days, or a child who seems to be getting progressively worse should also prompt a call to their pediatrician.
The point is that we don't need to fear every fever, but we absolutely need to respect the situations where illness becomes more serious.
Now, here's another question I want every parent to think about. Who do you call first?
When your child wakes up sick in the middle of the night, or develops a fever during the day, who do you turn to for guidance?
Most parents automatically think of their pediatrician or urgent care.
But when it's not an urgent situation, we want Innate Family Chiropractic to be your first stop. Give us a call, let us know what's going on, and let's get your child checked.
Why? Because the nervous system plays a critical role in how the body responds to stress, regulates inflammation, and communicates with the immune system. That's why we're so passionate about supporting nervous system health.
We know our patients. We know their histories, the challenges they've faced, and what their families are working toward.
And we want our parents to feel comfortable reaching out, asking questions, and having a conversation rather than feeling like they have to figure everything out on their own.
So let's talk about some other practical ways to support your child when they're sick.
Because even when a fever is serving a beneficial purpose, that doesn't mean your child has to be miserable.
The first priority is hydration.
When body temperature rises, your child loses more fluid through sweating and breathing. And if they're not drinking enough, dehydration can become a concern pretty quickly.
Offer water regularly, and for children who need additional hydration support, consider an age-appropriate oral rehydration solution. Diluted juice or homemade popsicles are other ways to encourage fluids, depending on the child's age and needs.
Next is rest and comfort.
When your child is fighting an infection, their body is doing a tremendous amount of work. This isn't the time to push through a busy schedule or insist they maintain their normal level of activity.
Let them sleep. Encourage quiet activities. Keep the room at a comfortable temperature and dress them in lightweight clothing.
A lukewarm bath can also be soothing if they enjoy it. Just avoid cold baths or anything that causes shivering.
And another big one is nutrition.
Have you noticed that when kids are sick, they often don't want to eat much?
That's common during an illness, and you don't need to force a full meal when their appetite is low.
Focus on keeping them hydrated and offering nutritious foods as they're interested.
Warm soups or bone broth, fresh fruit, vegetables, and easy-to-digest foods can provide fluids and nutrients while being gentle on their stomach.
And don't forget about creating a calm, supportive environment.
We talk about the parasympathetic nervous system all the time because it's involved in the body's rest, digestion, and recovery processes.
When your child is sick, helping them feel safe and comfortable, offering reassurance, and allowing plenty of quiet time can reduce unnecessary stress.
Sometimes the most helpful things we do as parents aren't complicated. It's giving our kids the rest, nourishment, comfort, and appropriate care they need while their immune system works through an illness.
Supporting healthy kids isn't something we should only think about when they're sick.
Regular chiropractic care, consistent sleep, good nutrition, and regular movement, all contribute to overall wellness.
I think one of the biggest shifts we can make as parents is changing the way we define health.
A healthy child isn't necessarily a child who never gets sick.
Kids are going to encounter viruses and bacteria. They're going to have runny noses, coughs, and occasional fevers.
And while none of us enjoys those sick days, understanding the body's response helps us make more informed decisions instead of reacting out of fear.
So the next time your child wakes up with a fever or starts going through another box of tissues, remember what's happening beneath the surface.
The brain is communicating with the immune system. Immune cells are responding to the infection. Protective mechanisms are working to clear unwanted particles and help the body recover.
It's an incredibly complex process, and one that deserves our attention and respect.
At Innate Family Chiropractic, we're passionate about helping families better understand the nervous system and how it relates to their overall health.
Because our goal isn't simply to help families think about health when something goes wrong.
It's to help grow a healthier generation of kids who are supported through every stage of their development.
If you'd like to learn more about our neurologically-focused approach to pediatric and family wellness, visit our website or reach out to our office.
We'd love to help your family thrive from the inside out!