Arizona’s warm climate allows plants, weeds, and grasses to grow for much of the year. While this creates beautiful landscapes, it also means pets are exposed to environmental allergens for longer periods than in many other regions.
Dogs and cats in Mesa frequently experience seasonal allergies caused by pollen, dust, mold spores, and desert grasses. In Arizona, allergy season for pets often peaks during spring and fall but can persist year round depending on weather patterns.
Unlike people who experience sinus symptoms, pets often show allergic reactions through their skin. If your dog or cat is constantly scratching, licking their paws, or developing irritated skin, allergies may be the cause.

Understanding how allergies develop and what treatments are available can help keep your pet comfortable.
What Causes Seasonal Allergies in Dogs and Cats
Seasonal allergies occur when the immune system overreacts to substances that are usually harmless. These substances, called allergens, can trigger inflammation throughout the body.
Common allergy triggers in Arizona include:
- Tree pollen
• Grass pollen
• Weeds and desert plants
• Mold spores after rain or monsoon season
• Dust and dust mites
• Flea bites
When pets come into contact with these allergens, their immune system releases chemicals that cause inflammation and itching. Allergens can enter through the skin, paws, or respiratory system, which is why many pets develop skin irritation or paw licking during allergy season.
Signs Your Pet May Be Experiencing Allergies
Seasonal allergies can affect pets differently depending on the severity of the reaction and the allergens involved.
Common symptoms include:
- Persistent scratching
• Excessive licking or chewing of paws
• Ear infections or head shaking
• Red or inflamed skin
• Hair loss or thinning coat
• Hot spots or skin sores
• Sneezing or watery eyes
In many dogs, itching is most noticeable around the paws, belly, ears, and face. Cats may groom excessively, sometimes creating bald patches or irritated areas on their skin.
When pets scratch constantly, the skin barrier can become damaged. This may allow bacteria or yeast to cause secondary infections, which can worsen itching and discomfort.
At Home Care Tips for Pets with Allergies
There are several ways pet owners can reduce allergy exposure at home and help relieve mild symptoms.
Bathe Your Pet Regularly
Bathing your pet removes pollen and dust from their coat and can soothe irritated skin.
Clean Paws After Outdoor Walks
Pollen and grass allergens collect on paws. Wiping them down can reduce allergen exposure inside the home.
Wash Bedding Frequently
Allergens can accumulate in blankets and beds where pets sleep.
Use Air Filters
High quality air filters can reduce airborne allergens such as pollen and dust.
Maintain Year Round Flea Prevention
Flea allergies are one of the most common triggers for itchy skin in pets.
These simple steps can make a meaningful difference during allergy season.
Veterinary Treatments for Pet Allergies
When allergy symptoms become severe or persistent, veterinary care may be necessary.
Your veterinarian may recommend several treatment options depending on the cause and severity of the allergy.
Prescription Anti Itch Medications
Medications such as Apoquel can reduce inflammation and control itching associated with allergic skin disease.
Injectable Allergy Treatments
Cytopoint injections can provide relief from itching for several weeks by blocking signals that trigger itch responses in dogs.
Allergy Testing
Diagnostic tests may be performed to identify specific environmental allergens.
Immunotherapy
Allergy shots help gradually desensitize the immune system to allergens over time.
Medicated Shampoos and Topical Treatments
Specialized shampoos and sprays can soothe skin irritation and help prevent infections.
Your veterinarian will recommend the most effective treatment plan based on your pet’s symptoms and health history.
Helping Mesa Pets Stay Comfortable Year Round
Seasonal allergies are common among dogs and cats in Arizona, but they do not have to interfere with your pet’s quality of life. With proper management and veterinary care, most pets experience significant relief.
If your pet is constantly scratching, licking their paws, or developing irritated skin, it may be time for a veterinary exam.
At Low Cost Veterinary Clinic of Mesa, our team can help identify allergy triggers and provide treatments that keep your pet comfortable through every season.