Seasonal Allergies in Dogs in 2025: Vet‑Backed Guide  🌼🐾

By Dr. Duncan Houston BVSc

📌 What Are Seasonal Allergies?

Seasonal allergies (atopy) occur when a dog’s immune system overreacts to environmental allergens like pollens, mold, dust mites, or grass—often during spring, summer, and fall.

🔍 What Causes Them?

• Pollen from trees, grass, weeds, mold spores, and dust mites
• Even contact allergens—plant fibers, household dust—can trigger reactions
• Genetic predisposition—certain breeds like Labs and Terriers are more susceptible

👀 Signs to Watch For

• Intense itching, scratching, licking—especially paws, belly, underarms, face, ears
• Red, inflamed skin; hot spots and secondary infections
• Sneezing, runny nose, watery eyes in some dogs
• Chronic or recurring ear infections

🩺 How Are They Diagnosed?

• Based on symptoms, annual recurrence, and physical exam
• Rule out fleas, mites, food allergies, infections
• Allergy testing (blood or skin) may be recommended

💊 Treatment Options

• Oral antihistamines (Benadryl, Zyrtec) or prescription meds like *Zenrelia*, *Cytopoint*, *Apoquel*
• Steroids for short-term control during flare-ups
• Essential fatty acids (omega‑3) to reduce inflammation
• Topical therapies: medicated shampoos, oatmeal baths, sprays
• Allergy immunotherapy (injections or drops) to desensitize over time

🛡️ Prevention & Comfort Tips

• Keep track of local pollen counts & avoid walks during peaks (dawn/dusk)
• Wipe paws and coat after outdoor time
• Bathtub hygiene—bathing 1‑2x/week with hypoallergenic shampoo
• Use HEPA air filters; keep windows closed on high allergy days
• Provide omega‑3-rich diets or supplements
• Maintain flea control; allergic dogs are more vulnerable

📈 Prognosis

Seasonal allergies are lifelong but manageable. With proper treatment and home care, most dogs live comfortably—even during peak seasons.

📞 When to See the Vet

• Persistent or worsening itch, infections, ear problems, or respiratory signs
• New swelling, hives, or systemic signs like vomiting or diarrhea
• When over-the-counter treatments aren’t sufficient

Need help during flare‑ups? Use the Ask A Vet app anytime for fast, professional guidance 📱.