Seasonal Allergies and Dogs: What to Know

Just like humans, dogs can suffer from seasonal allergies triggered by changing weather. Whether it’s the pollen explosion of spring, dry leaves in fall, or mold and dust stirred up during seasonal shifts, environmental allergens can wreak havoc on your pup’s comfort and skin. Knowing the signs, causes, and treatment options for dog allergies can help you keep your canine companion happy and itch-free all year round.

What Are Seasonal Allergies in Dogs?

Seasonal allergies, also called atopic dermatitis or environmental allergies, occur when your dog’s immune system overreacts to common allergens in their environment. Unlike food allergies or flea allergies, seasonal allergies are often triggered by things like:

• Tree, grass, or weed pollen

• Mold spores

• Dust mites

• Leaf debris

• Fungi or mildew

These allergens are most prominent in spring, summer, and fall, but depending on your region’s climate, symptoms can appear year-round.

Common Signs of Seasonal Allergies

Dogs express allergic reactions differently than humans. Instead of sneezing or runny noses, allergic dogs often show signs through their skin, ears, and paws.

Watch for these common symptoms:

• Excessive scratching or licking

• Red, inflamed skin

• Hot spots

• Chewing at paws or legs

• Hair loss or thinning coat

• Chronic ear infections

• Watery eyes or sneezing

• Scooting or licking anal area

If your dog experiences any of these signs—especially at the same time each year—seasonal allergies could be the culprit.

When Do Seasonal Allergies Occur?

Different allergens appear during different parts of the year:

• Spring: Tree pollen, mold spores, and grass begin to rise.

• Summer: Grass and weed pollen are at their peak.

• Fall: Ragweed, mold from fallen leaves, and dust accumulate.

• Winter: While fewer allergens exist outdoors, indoor allergens like dust mites and mold can become more concentrated as homes are closed up.

Each dog is different. Some may only react in the spring, while others might itch all summer or flare up in fall.

How Weather Changes Worsen Allergies

Changes in temperature, humidity, and precipitation can amplify allergens:

• Warmth and humidity promote mold and fungal growth.

• Windy days spread pollen and dust more easily.

• Rainy periods may reduce airborne pollen but boost mold spores.

• Dry, cold weather can cause skin to crack, worsening irritation.

This is why it’s common to notice your dog scratching more during or after weather shifts.

Helping Your Dog Manage Seasonal Allergies

Thankfully, there are ways to bring your dog relief during allergy seasons:

1. Frequent Baths

Use hypoallergenic or oatmeal-based dog shampoos to wash off allergens and soothe itchy skin. Bathing once every 1–2 weeks during peak allergy season can make a big difference.

2. Wipe Down After Walks

Use dog-safe wipes or a damp cloth to clean your dog’s paws, legs, and belly after being outdoors. This removes pollen and debris before it enters your home.

3. Regular Grooming

Brush your dog regularly to remove allergens trapped in their fur. Keeping their coat clean and trimmed reduces skin irritation.

4. Air Purifiers and Filters

Use HEPA filters in your home’s HVAC system and consider placing air purifiers in rooms where your dog spends the most time.

5. Limit Outdoor Time During High-Allergen Days

Check local pollen counts and avoid long walks during high allergen periods—especially early mornings and windy afternoons.

6. Provide Skin and Immune Support

Talk to your vet about supplements such as omega-3 fatty acids or probiotics, which may help support skin health and immune function.

Veterinary Options for Severe Allergies

If your dog’s symptoms are persistent or severe, veterinary care may be needed. Common treatments include:

• Antihistamines: Like Benadryl or cetirizine, under veterinary guidance.

• Prescription allergy medications: Such as Apoquel or Cytopoint.

• Medicated shampoos: To reduce itching and inflammation.

• Steroids: For short-term relief of extreme flare-ups.

• Allergy testing and immunotherapy: Long-term solution via allergy shots or drops.

Always consult your veterinarian before starting any treatment, even over-the-counter options.

Can Diet Help with Seasonal Allergies?

While seasonal allergies are environmental, a strong immune system helps reduce symptoms. Feeding a high-quality diet rich in nutrients, healthy fats, and antioxidants can improve your dog’s resilience.

Some owners also notice improvements by adding supplements like:

• Fish oil (omega-3s): Helps reduce inflammation.

• Quercetin: A natural antihistamine.

• Probiotics: To support gut and immune health.

Again, check with your vet before adding supplements to your dog’s routine.

Allergy-Prone Breeds

Some breeds are more prone to seasonal allergies, including:

• Golden Retrievers

• Bulldogs

• Labrador Retrievers

• Pugs

• West Highland White Terriers

• German Shepherds

• Boxers

If you own one of these breeds, stay extra alert during seasonal transitions.

Final Thoughts

Seasonal allergies are no walk in the park—for you or your dog—but with some awareness and simple adjustments, you can ease their discomfort. Regular grooming, vet-approved treatments, and an allergy-aware lifestyle go a long way toward making every season more enjoyable for your furry friend.

By being proactive, you can help your dog handle the changing weather and allergens with confidence—and a lot less itching.