Seasonal Allergies in Pets

A small long-haired Pekingese sits in a field of wildflowers

Just like people, our pets can experience reactions to various seasonal environmental allergens, such as pollen, mold, and dust mites. Recognizing the signs and understanding how to manage seasonal allergies in pets is crucial to keep your pet happy and healthy.

Causes of Seasonal Allergies in Pets

The same seasonal allergens that cause reactions in humans also impact our pets.


Tree, grass, and weed pollen can trigger allergic reactions in pets.

Mold and Fungi

Damp environments, including outdoor areas and indoor spaces with poor ventilation, may harbor mold spores that can cause allergies.

Dust Mites

These microscopic creatures thrive in dust and can be present in bedding, carpets, and upholstery, leading to allergic reactions.

Insect Allergens

Flea bites, as well as saliva or body parts of insects like mosquitoes and ticks, can cause allergic responses in some pets.

Other Environmental Factors

Chemical irritants, cigarette smoke, and certain cleaning products can also contribute to allergies in pets.

How to Tell if Your Pet is Experiencing Seasonal Allergies

Symptoms of seasonal allergies in pets are similar to the symptoms of human seasonal allergies, including:

  • Itchy Skin
  • Frequent scratching, chewing, licking, or rubbing against furniture or walls.
  • Skin Redness and Irritation
  • Excessive Shedding & increased hair loss due to constant itching and grooming
  • Sneezing and Watery Eyes
  • Frequent ear scratching, head shaking, or discharge from the ears leading to infections
  • Digestive Issues, including vomiting, diarrhea, or changes in appetite

Diagnosis and Treatment

If you suspect your pet may be suffering from seasonal allergies, schedule an appointment with your veterinarian. A thorough physical examination and review of the pet’s medical history are crucial for diagnosing seasonal allergies. Depending on your pet’s evaluation, your veterinarian may recommend the following diagnostic tests and treatments:


Antihistamines, corticosteroids, and other medications may be prescribed to alleviate symptoms and provide relief.

Environmental Management

Reducing exposure to allergens by regularly cleaning bedding, vacuuming, and maintaining a hypoallergenic environment can provide relief.

Dietary Changes

Certain dietary changes or supplements, such as omega-3 fatty acids, can help strengthen the skin barrier and reduce inflammation.

Allergy Testing

If your pet is not responding to basic treatment, tests can help identify specific allergens causing the reactions. Results from this testing allows for patient specific avoidance and allergen specific immunotherapy (ASIT).

How to Protect Your Pet Against Common Allergens

While it’s impossible to remove all allergens from your pet’s life, certain measures can help reduce the likelihood of developing seasonal allergy symptoms.

Flea Control

Regular flea prevention and control measures can help reduce the risk of insect-related allergies. Flea allergy dermatitis is a very common allergy impacting both cats and dogs.

Regular Grooming

Bathing with hypoallergenic shampoos and brushing can remove pollen and other allergens from the pet’s coat.

Pollen Awareness

Keep an eye on pollen forecasts and try to limit outdoor activities during peak allergy seasons. Use air purifiers, keep windows closed during high pollen days, and clean regularly to minimize indoor allergens on days when the pollen is high.

Consultation with Veterinarian

Regular check-ups are essential to ensure the optimal management of seasonal allergies in your pet.


Seasonal allergies can significantly impact the health of our pets and can be difficult to manage. By understanding the causes, recognizing the symptoms, and implementing appropriate treatments and preventive measures, you can help your pet live a happier, healthier life.