Spring in Fort Collins is beautiful — but for a lot of families, it also means sneezing, itchy eyes, and stuffy noses that seem to come out of nowhere. The tricky part? Allergies, colds, and sinus infections can all look and feel remarkably similar, especially in kids. If you’ve ever wondered whether your child needs an antihistamine or just a little rest and time, you’re not alone. This is one of the most common questions Dr. Rellas hears every spring. Here’s how to tell them apart — and what to do about each one.
Allergies vs. Cold vs. Sinus Infection: How to Tell the Difference
What Allergies Usually Look Like
Spring allergies are triggered by pollen — from grasses, trees, and weeds that bloom as temperatures warm up in Northern Colorado. The symptoms tend to be consistent and predictable, and they often follow the same pattern year after year.
Common signs of seasonal allergies:
- Frequent nose rubbing in kids (we call this the “allergic salute”)
- Chronic congestion
- Itchy, watery eyes
- Cough that lingers (especially at night)
- Symptoms that improve indoors or on low-pollen days
One important distinction: allergies do not cause fever. If your child has a fever, something else is going on.
What a Cold Usually Looks Like
Colds are caused by viruses, not allergens, and they tend to follow a predictable arc. Symptoms often start mildly, peak around day 2–3, and then gradually improve over the course of 7–10 days.
Common signs of a cold:
- Congestion and runny nose (drainage may start clear and turn yellowish)
- Sore throat
- Mild fatigue or low-grade fever
- Symptoms that improve on their own within a week
If your child’s symptoms are getting better after a few days, a cold is the likely culprit.
What a Sinus Infection Usually Looks Like
Sinus infections (sinusitis) are less common than allergies or colds, but they can develop when congestion lingers and creates the right conditions for bacteria to grow. They’re worth paying attention to because they sometimes require treatment.
Common signs of a sinus infection:
- Symptoms that last longer than 10 days without improvement
- Thick, discolored nasal drainage
- Facial pressure or pain around the cheeks, forehead, behind eyes, or teeth
- Symptoms that seemed to be improving and then got worse again
That last point — symptoms that temporarily improved and then rebounded — is a useful clue. That pattern of “double worsening” is one of the hallmarks of a bacterial sinus infection.
Simple Tips for Managing Spring Allergies in Kids
Timing Outdoor Play Strategically
Pollen counts tend to be highest in the morning and early afternoon. Scheduling outdoor activities for later in the day — especially after rain — can meaningfully reduce your child’s exposure on high-pollen days. Check local pollen reports for Fort Collins when planning ahead.
Hats and Sunglasses Help More Than You’d Think
Pollen clings to hair and settles in eyes. Hats keep pollen out of hair, and sunglasses create a physical barrier that reduces eye exposure during outdoor time. These simple additions make a real difference, especially for kids who are particularly sensitive.
Try Saline Nasal Rinses or Sprays
Saline nasal rinses are a safe, effective, and medication-free way to help kids manage congestion. They work by physically flushing allergens and irritants from the nasal passages. Many kids tolerate them well once they get used to the sensation, and they can be especially helpful before bedtime to improve sleep quality. Saline sprays are another great option, especially for the youngest little ones.
Keep Windows Closed on High-Pollen Days
As tempting as it is to let fresh spring air in, open windows invite pollen inside. On high-pollen days, keeping windows closed and running air conditioning helps maintain a lower-allergen environment at home.
When to Check In With Your Doctor
Allergies are very treatable. The right antihistamines, nasal sprays, and simple exposure adjustments can bring real relief — and help prevent symptoms from escalating into something more. If you’re not sure whether your child is dealing with allergies, a cold, or something more persistent, a quick check-in can help guide the next step.
As a Direct Primary Care practice, Rellas Family Medicine members have direct access to Dr. Rellas by text, phone, or same-day visit — so you don’t have to wait weeks for an appointment or guess on your own. If your child’s symptoms are dragging on, not improving, or you just want a second opinion, reach out.
Learn more:
What Is Direct Primary Care? How It Works for Fort Collins Families: https://rellasfamilymedicine.com/
Cold vs. Flu vs. COVID — How to Tell the Difference: https://rellasfamilymedicine.com/
Not sure if it’s allergies, a cold, or something more? Book a free consultation with Dr. Rellas and get answers from a doctor who knows your family.
Spring Allergy FAQ
Q: How do I know if my child has allergies or just a cold?
A: The biggest clues are duration and symptoms. Allergies don’t cause fever and tend to persist as long as pollen is in the air. Colds typically resolve within 7–10 days and may include a sore throat or low-grade fever. If symptoms recur every spring at the same time of year, seasonal allergies are likely.
Q: Can kids develop spring allergies even if they’ve never had them before?
A: Yes. Allergies can develop at any age, including in children who had no previous symptoms. It’s not uncommon for families to notice allergy symptoms for the first time after a child has lived in a particular area for a season or two.
Q: What’s the best over-the-counter allergy medicine for kids?
A: Non-drowsy antihistamines like cetirizine (Zyrtec) and loratadine (Claritin) are commonly recommended for kids. Nasal corticosteroid sprays can also be effective for more persistent symptoms. That said, it’s always a good idea to check with your child’s doctor before starting a new medication, especially for younger children.
Q: When should I take my child to the doctor for allergy symptoms?
A: If symptoms are significantly affecting sleep, school, or daily activities; if over-the-counter remedies aren’t providing relief; or if you’re unsure whether you’re dealing with allergies, a cold, or a sinus infection — it’s worth a check-in. Members of Rellas Family Medicine can reach Dr. Rellas directly for a quick consult without waiting for an appointment.
Q: Is it allergies or a sinus infection?
A: Sinus infections often follow a period of congestion that doesn’t improve, or that seems to get better and then suddenly gets worse again. Thick, discolored drainage and facial pressure or pain are additional signs. If you’re seeing that pattern, it’s time to check in with a doctor.
