When Should You Actually Test Their Immune System?
Your child has been sick seven times since September.
You’re keeping a tally. You’ve used all your sick days. You’re starting to wonder if something is actually wrong.
Should you ask for immune testing?
Let’s walk through this.
Primary immunodeficiency disorders (PIDDs) are genetic conditions where the immune system doesn’t work properly.
How common are they?
Rare. About 1 in 1,200 people. Most are diagnosed in childhood.
Translation: If your child gets lots of colds, it’s probably not an immune deficiency. But if they meet certain criteria, testing might be warranted.
The Jeffrey Modell Foundation (experts in immune deficiency) lists 10 warning signs:
Notice what’s NOT on this list:
“Lots of colds.”
It’s the TYPE and SEVERITY of infections that matter, not just the frequency.
If testing is warranted, we typically start with:
Checks overall white blood cell counts and types
Measures antibody levels (IgG, IgA, IgM, IgE)
Checks if body made antibodies to vaccines they’ve received
More specialized testing (genetic testing, T-cell function, etc.) is done by immunology specialists if initial tests are concerning.
When you bring your frequently-sick child to us:
Keep a log if you’re concerned:
Bring this to your visit. It helps us see the big picture.
โ Most kids who get sick frequently have normal immune systems
โ 6 -12 illnesses per year is textbook normal for young children
โ It’s the severity and type of infections that matter, not just frequency
โ True immune deficiency is rare
โ If you meet warning criteria, testing is appropriate
๐คง Worried about recurrent illness? We can evaluate.
Most of the time, it’s normal. But we’ll help you know for sure.
1/22/2026
How to Tellโand What to Do About It
Your eyes are red. They’re itchy. There’s goop in the corners.
You Google: “red itchy eye” and everything says pink eye.
But is it really pink eye? And does it even need treatment?
Here’s what you need to know.
“Pink eye” (conjunctivitis) is inflammation of the conjunctiva – the clear membrane covering the white part of your eye.
But red eyes can also be:
How to tell if it’s actually pink eye:
Symptoms:
Caused by:
Adenovirus (same family as common cold)
Contagious?
EXTREMELY. Can spread for up to 2 weeks.
Treatment:
No antibiotics (it’s a virus). Supportive careโcool compresses, artificial tears. Runs its course in 7-14 days.
Symptoms:
Caused by:
Bacteria (Staph, Strep, Haemophilus)
Contagious?
Yes, until treated with antibiotics.
Treatment:
Antibiotic eye drops. Usually clears in 3-5 days. Contagious until 24 hours after starting drops.
Symptoms:
Caused by:
Allergens (pollen, dust, pet dander, mold)
Contagious?
No.
Treatment:
Antihistamine eye drops, avoid allergen. Usually improves quickly.
๐๏ธ Red eyes? Goopy discharge? We can tell you what it is. Get the right diagnosis. Get the right treatment.
1/20/2026
Could Be Spraying Bacteria Into Their Face All Night
Let’s talk about your humidifier.
When’s the last time you cleaned it? Really cleaned it?
Not rinsed. Not “emptied the water.” Actually scrubbed, disinfected, and dried it?
If you’re thinking “…uh… never?” you’re not alone.
But here’s what’s happening inside that thing.
A humidifier is basically a warm, wet, dark container.
Perfect environment for:
Within 24-48 hours of filling it with water, bacterial colonies start forming.
By day 3-4? Full-on bacterial party.
And every time you turn it on, it aerosolizes that bacteria-filled water and sprays it into the air your child breathes.
Studies analyzing home humidifiers found:
Found in up to 32% of tested humidifiers. Causes severe pneumonia. Can be fatal in vulnerable populations.
Common in hospital-acquired infections. Found frequently in home humidifiers. Causes respiratory infections, especially in people with compromised immune systems or chronic lung conditions.
Triggers asthma attacks, allergic reactions, and respiratory infections. Some molds produce mycotoxins (toxic compounds).
Inflammatory compounds from bacterial cell walls. Cause fever, flu-like symptoms, and lung inflammation.
From tap water minerals. Fine particles that settle on surfaces AND get inhaled. Can irritate lungs, especially in children with asthma.
These are real medical conditions:
Symptoms:
Symptoms:
The clue? Symptoms worsen at night (when humidifier runs) and improve during the day or away from home.
We can evaluate for infections, provide breathing treatments, and help identify environmental triggers.
Most people don’t clean humidifiers nearly enough. Here’s what actually works:
If any of these apply? Throw it out. Buy a new one. Start fresh.
๐ง You bought a humidifier to help. Don’t let it become the problem.
1/16/2026
Three Family Members at Urgent Care.
The new puppy has been home for one week.
Your daughter has scratches up and down her arms. Your son has a bite mark on his hand that’s looking puffy and red. And you? You’ve got a puncture wound from breaking up their “tug of war” that the puppy thought included your fingers.
Nobody told you this part of pet ownership.
Here’s the truth: animal mouths are bacteria factories.
Dogs, cats, puppies, kittens – their saliva contains dozens of types of bacteria. When they bite or lick an open wound, those bacteria get pushed deep into your tissue.
The result? Infection. And animal bite infections can get serious fast.
Infection rates by animal:
Come to Night Watch immediately if the bite or scratch shows:
These are signs your body is fighting an infection – and may be losing.
Here’s what people don’t realize: the sooner you get treatment, the better.
Within 8 hours of injury: Wound can be thoroughly cleaned, greatly reducing infection risk. May be able to close with stitches.
After 8 hours: Infection risk increases. May need to leave wound open. Antibiotics almost always needed.
After 24+ hours: If untreated, infection may have already started. Requires aggressive treatment.
Don’t wait. Come in the same day you’re bitten.
Some bites are higher risk than others:
Highest infection risk. Lots of small spaces for bacteria to hide. Close to tendons, joints, and bones. Always need medical evaluation.
Risk of scarring, nerve damage, and infection. Need immediate care.
Look small on the surface but push bacteria deep into tissue. High infection risk. Often from cat bites.
Can cause bone or joint infection (osteomyelitis, septic arthritis). Serious. Need immediate treatment.
We treat animal bites and scratches for all ages:
New pets are adorable, infected animal bites are not. Get it treated before it gets serious.
1/13/2026
“They’re just a teenager. Teenagers are tired.”
That’s what you’ve been telling yourself for weeks. Maybe months.
But deep down, you know this is different. This isn’t “stayed up too late scrolling TikTok” tired. This is “can barely function” tired.
So what’s actually going on?
Here’s what many parents don’t realize: extreme exhaustion in teens almost always has a medical cause, and most of them are diagnosable with simple blood work.
The Test: Monospot test (quick, simple blood test)
What It Shows: Whether they have active Epstein-Barr virus infection
Why It Matters: Mono causes weeks of extreme fatigue. Knowing they have it means they can rest properly and avoid complications (like enlarged spleen rupture from sports).
The Test: Basic blood work checking red/white blood cells
What It Shows: Anemia (low iron), infections, blood disorders
Why It Matters: Anemia is incredibly common in teenage girls and causes crushing fatigue. Treatment is simple – iron supplements, but you need to know it’s there first.
The Test: Blood test measuring thyroid hormone levels
What It Shows: Whether thyroid is underactive (hypothyroidism) or overactive (hyperthyroidism)
Why It Matters: Thyroid problems are surprisingly common in teens and cause fatigue, weight changes, mood issues, brain fog. Highly treatable with medication.
The Test: Blood work checking vitamin levels
What It Shows: Whether they’re deficient in key nutrients
Why It Matters: Vitamin D deficiency causes fatigue, depression, weakened immune system. B12 deficiency causes exhaustion and cognitive issues. Easy to fix with supplements.
Here’s what to expect when you bring your teen to Night Watch:
Stop waiting for it to “get better on its own.” Come in if:
You can’t fix what you can’t diagnose. Let’s find out what’s really going on.
1/09/2026
When Holiday Leftovers Turn Into a Family Health Crisis
You hosted the holiday gathering. The food was delicious. Everyone had seconds. Some people took leftovers home.
Now it’s three days later and your phone is blowing up:
“Hey, I’ve been throwing up since yesterday…”
“My kids are sick too…”
“Did anyone else get food poisoning from dinner?”
Uh oh.
Food poisoning doesn’t always happen because food was “old.” Sometimes it happens because:
If multiple people from the same meal get sick, it’s likely something at that dinner was contaminated.
Waitโhow do you know it’s food poisoning and not just a stomach bug going around?
FOOD POISONING:
STOMACH FLU (NOROVIRUS):
Either way? If symptoms are severe, come see us.
For Children:
At Night Watch, we treat food poisoning in children:
1/06/2026
What Every Parent Should Know About Concussions
Kids fall. It’s what they do. Off swings, off bikes, off trampolines, off each other.
Most of the time, they’re fine. A little cry, a quick hug, and they’re back to playing.
But sometimes, even when they seem totally fine, that bump on the head is more serious than you think.
A concussion is a type of traumatic brain injury caused by a bump, blow, or jolt to the head, or even a hit to the body that causes the head to move rapidly back and forth.
This movement causes the brain to bounce or twist inside the skull, creating chemical changes and sometimes stretching and damaging brain cells.
MYTH: They have to lose consciousness.
REALITY: Most concussions don’t involve loss of consciousness.
MYTH: Symptoms show up immediately.
REALITY: Symptoms can appear hours or even days later.
MYTH: If they seem fine, they’re fine.
REALITY: Kids often downplay symptoms or don’t recognize them as abnormal.
MYTH: It’s just a headache, they’ll be fine by tomorrow.
REALITY: Returning to normal activities too soon can delay recovery or cause serious complications.
Come to Night Watch if your child:
Better safe than sorry when it comes to your child’s brain.
At Night Watch, we provide:
It’s not “just a bump.” Get it checked.
1/02/2026
Asthma Attack Warning Signs & When to Get Help NOW
Your chest feels tight. Breathing is getting harder. You reach for your inhalerโbut it’s not helping like it usually does.
Is this just asthma, or is this an emergency?
Here’s how to knowโand what to do about it.
Asthma attacks don’t always come out of nowhere. Your body usually gives you warning signals:
๐ If you’re noticing these signs, don’t wait for it to get worse. Walk into Night Watch in Manassas for evaluation and treatment adjustment.
Some symptoms mean you need urgent medical care right now:
| ๐จ SEVERE ASTHMA ATTACK ๐จ Come to Night Watch Manassas NOW or Call 911 Extreme difficulty breathing โ can’t speak in full sentences Lips or fingernails turning blue/gray Using stomach muscles to breathe (chest is pulling in) Rescue inhaler isn’t working Peak flow in red zone (if you use a meter) Feeling confused or very drowsy Symptoms getting worse fast |
Not sure where to go? Here’s how to decide:
We treat asthma attacks every day. Here’s how we help:
Asthma attacks that go untreated can become life-threatening. The earlier you get help, the faster you’ll feel betterโand the less likely you’ll end up in the hospital.
If you’re using your rescue inhaler more than twice a week, your asthma isn’t well-controlled. Come see us.
| ๐ Quick Action Plan MILD symptoms (wheezing, coughing): โ Use rescue inhaler, rest, monitor closely MODERATE symptoms (trouble breathing, inhaler not helping much): โ Come to Night Watch Manassas NOW for treatment SEVERE symptoms (can’t talk, blue lips, extreme distress): โ Call 911 or get to ER immediately |
Asthma doesn’t care if it’s 9 PM or Saturday morning. That’s why we’re here!
When you can’t catch your breath, don’t wait.
Walk into Night Watch Urgent Care โ Manassas. We’ll help you breathe easier.
12/30/2025
Do You Really Have to Wait 9 Hours?
Your child is burning up. You’ve given them medicine twice. They’re miserable, crying, and you’re Googling “when to take a kid with 104 fever to ER” for the third time tonight.
Your options seem to be:
What if we told you there’s a third option?
Some things genuinely can wait. A low-grade fever with a runny nose? Probably fine until tomorrow. But these? These need attention tonight:
Kids aren’t just small adults. Their bodies respond to illness differentlyโand things can escalate fast.
What can happen overnight:
Bottom line: The thing that seems “manageable” at 10 PM might not be manageable at 3 AM.
We get asked this constantly. Parents worry they’ll come in and we’ll say “it’s just a virus, go home.”
And you know what? Sometimes that’s exactly what we say.
But here’s what else we say: “You did the right thing by bringing them in.”
Because ruling out the scary stuff is valuable. Knowing you don’t need antibiotics is valuable. Going home with a plan and peace of mind? That’s valuable.
You’re not bothering us. This is literally what we’re here for.
Unless your child needs emergency life-saving care, coming to Night Watch gets you:
Sick kids don’t wait for business hours. Neither do we.
Extended evening & weekend hours means:
๐ก๏ธ When their fever spikes at 10 PM, you don’t have to wait until 9 AM.
Walk into Night Watch Pediatric Urgent Care โ Manassas. We’re here now.
12/25/2025
Is It the Flu or Is It December?
Monday: “Mom, my tummy hurts.”
Wednesday: “Mom, it still hurts.”
Friday: “MOM. MY TUMMY.”
No fever. No vomiting. Nothing visibly wrong. You’ve checked for appendicitis symptoms six times. You’re wondering if they’re faking it to avoid the holiday concert.
Plot twist: it’s probably stress. And yes, kids’ stress can absolutely cause real physical pain.
Adults get stress headaches. Kids? They get stress stomachaches. Same mechanism, different target.
Why December hits different:
Most kid stress is normal. But some symptoms need a professional to rule out other issues:
๐ฏ Parent gut check: If something feels off, it probably is. We’d rather see them and reassure you than have you up at 3 AM googling symptoms.
If your kid’s symptoms aren’t improving or you just need someone to check them out, walk into Night Watch Pediatric Urgent Care. We’ll help you figure out what’s stress and what needs treatment.
What you get:
๐ When your kid keeps saying it hurts? Believe themโand get answers.
Walk into Night Watch Pediatric Urgent Care โ Manassas. We’ll help you figure it out. ๐
12/23/2025