Fall Allergies in Children: What Parents Need to Know

Young girl visiting an allergist to discuss seasonal fall allergies

As the temperatures drop and the leaves turn golden across Central Oregon, many families breathe a sigh of relief that wildfire smoke and summer dust are finally behind us. But for plenty of kids, fall brings a new round of sniffles, sneezes, and itchy eyes — all signs that fall allergies have arrived.

Understanding what’s triggering your child’s symptoms can make the season much smoother for everyone. Here’s what every parent should know about fall allergies in kids, including causes, symptoms, home strategies, and treatment options available through your pediatrician.

Why Fall Triggers Allergies in Kids

Ragweed, Mold, and Leaf Debris as Major Culprits

Even after summer pollen fades, several powerful allergens stick around well into October and November. The biggest troublemakers? Ragweed pollen, mold spores, and decaying leaf debris.

Ragweed is one of the most common causes of seasonal allergies in children across the U.S. One ragweed plant can release millions of microscopic pollen grains that drift for miles, even into areas where the plant doesn’t grow visibly. In Oregon, ragweed levels typically rise in late August and peak through September.

As the leaves begin to fall, mold spores become another major source of irritation. Damp piles of leaves, compost, and wood chips create the perfect breeding ground for mold, which releases airborne spores your child can inhale while playing outdoors.

Even everyday fun — raking leaves, jumping in piles, or hiking near a creek bed — can stir up enough allergens to trigger sneezing, congestion, or itchy eyes.

How Oregon’s Climate Impacts Fall Allergy Season

Central Oregon’s dry, breezy fall days mean pollen and mold can travel easily through the air. The region’s large temperature swings — crisp mornings followed by sunny afternoons — also keep allergens circulating longer than in wetter coastal climates, where rain helps wash particles out of the air.

Because our area has relatively low humidity, indoor air can become dry as well, which sometimes worsens nasal irritation. That’s why families often notice their child’s seasonal allergies flaring up again in September or October, even though it seems like “pollen season” should be over.

Common Symptoms to Watch For

Sneezing, Itchy Eyes, and Runny Nose

The most typical child allergy symptoms show up in the upper respiratory tract and eyes:

  • Sneezing fits, especially in the morning or after outdoor play
  • A runny or congested nose with clear mucus
  • Itchy, watery, or red eyes
  • Coughing or throat clearing due to post-nasal drip
  • Mild fatigue or irritability

In some children, fall allergies can also trigger asthma symptoms, such as wheezing, shortness of breath, or tightness in the chest. Parents who notice these signs should let their pediatrician know right away, as asthma and allergy symptoms often overlap and can worsen without proper treatment.

Distinguishing Allergies from Colds

Because both allergies and viral colds cause nasal congestion and runny noses, it’s not always easy to tell them apart. Here are some clues:

Symptom Allergies Cold
Sneezing Frequent, repetitive Occasional
Nasal discharge Clear, watery Thicker, may turn yellow or green
Itchy eyes Common Rare
Fever Never Sometimes
Duration Weeks or months Usually 7–10 days


If your child’s congestion lingers more than two weeks without fever — or always returns during the same season — allergies are a likely culprit.

Home Strategies to Reduce Allergy Flare-Ups

Keeping Windows Closed During High Pollen Counts

During peak ragweed season (late August through early October), it’s best to keep windows and car vents closed on windy days. Central Oregon’s strong afternoon breezes can carry pollen far and wide, especially in neighborhoods with open fields or construction dust.

Consider running your air conditioning on “recirculate” mode to keep outside air from entering the home. If you use a swamp cooler or heat pump, change filters regularly — every 4–6 weeks during high-pollen months.

Using Air Purifiers and Frequent Laundry

A HEPA-filter air purifier in your child’s bedroom can trap tiny pollen grains and mold spores, creating a cleaner space for sleeping. Vacuuming carpets weekly (using a vacuum with a HEPA filter) also helps, as does washing bedding in hot water once a week.

Kids who play outside should change clothes and shower after outdoor activities, especially before bedtime. This simple step removes pollen from skin and hair that could otherwise transfer onto pillows and sheets.

Managing Indoor Humidity and Leaf Cleanup

If your home’s air gets too dry, a cool-mist humidifier can reduce nasal irritation — but be sure to clean it regularly to prevent mold growth inside the machine.

When tackling yardwork, try to delegate leaf raking to non-allergic family members or have your child wear a mask if they want to help. Bag leaves promptly and store compost away from the main living area.

Treatment Options for Relief

Over-the-Counter vs. Prescription Medications

Many children find relief from over-the-counter medications — but it’s best to discuss options with your pediatrician before starting anything new. Common pediatric allergy treatments include:

  • Antihistamines (like cetirizine, loratadine, or fexofenadine) to reduce sneezing and itching
  • Nasal saline rinses or sprays to flush out pollen and soothe irritation
  • Nasal steroid sprays (such as fluticasone or mometasone) to calm inflammation in older children

Some medications are labeled for daily use during allergy season, while others work best as needed. Your pediatrician can guide you on correct dosing for your child’s age and weight, and whether combination therapy might help.

If symptoms persist despite medication, it may be time to consider prescription treatments or referral to an allergy specialist for testing.

When Allergy Testing May Be Helpful

Allergy testing can identify the specific triggers causing your child’s symptoms, such as ragweed, grass, tree pollen, mold, or pet dander. Knowing the culprits helps families make targeted changes at home and anticipate future flare-ups.

Testing may be especially helpful if:

  • Your child’s symptoms occur most of the year, not just in fall
  • Medications aren’t providing enough relief
  • Asthma or eczema are also present
  • There’s a strong family history of allergies

Your child’s doctor may recommend either skin-prick testing (fast and minimally uncomfortable) or blood testing to look for allergen-specific antibodies.

How COPA Supports Families with Pediatric Allergies

Same-Day Care for Severe Flare-Ups

At COPA, we know how frustrating allergy flare-ups can be for kids and parents alike, especially when they interfere with school, sports, or sleep. Our team offers same-day appointments for children experiencing severe or persistent allergy symptoms, such as constant congestion, worsening cough, or wheezing.

In some cases, symptoms that appear to be allergies may actually be signs of another condition, such as a sinus infection or asthma. A pediatrician can help sort that out quickly and provide the right treatment plan.

Guidance on Long-Term Allergy Management

COPA’s pediatricians work closely with families to build long-term allergy plans that fit a child’s daily life. That may include:

  • Reviewing medication timing and seasonal adjustments
  • Discussing environmental control measures at home and school
  • Coordinating referrals for pediatric allergy testing or immunotherapy (allergy shots or drops) when needed
  • Monitoring related conditions like asthma or eczema

For families whose children experience more notable or complex allergic conditions, COPA is proud to have a board-certified pediatric allergist on our team. She provides expert evaluation and advanced management for kids with persistent or multi-system allergies.
Appointments with our allergist are available through referral from your child’s primary care provider (PCP), ensuring that each child’s care remains coordinated and personalized.

With this collaborative approach, many families see significant improvement — fewer missed school days, better sleep, and more comfortable outdoor play throughout the year.

When to Call Your Pediatrician

Parents should reach out for an appointment if their child:

  • Has symptoms lasting more than two weeks without improvement
  • Experiences wheezing, persistent cough, or shortness of breath
  • Develops sinus pain, ear pressure, or fever (which may signal infection)
  • Has trouble sleeping or concentrating due to congestion or itchy eyes

Even mild allergies can impact mood, focus, and sleep — all crucial for a healthy school routine. With the right plan, kids can enjoy fall activities without constant sneezing or congestion.

Supporting Your Child Through Allergy Season

While allergies can’t be cured, understanding your child’s triggers and managing them early makes all the difference. Encourage kids to notice what situations worsen their symptoms, and teach simple habits like hand-washing, changing clothes after outdoor play, and not rubbing their eyes.

Parents can also check local pollen forecasts (available through weather apps or the National Allergy Bureau) to plan low-exposure days for outdoor sports or field trips.

And remember: every child’s allergies are different. Some outgrow seasonal sensitivities, while others may develop new triggers over time. The good news is that with a little guidance and preventive care, most children can enjoy Oregon’s beautiful fall without missing out on the fun.

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