Allergy Season Tracker

Veterinary Dermatology, Canine Atopic Dermatitis (CAD), and Cytopoint/Apoquel Therapeutics

Environmental allergic disease—specifically Canine Atopic Dermatitis (CAD) and Feline Atopic Skin Syndrome (FASS)—is a genetically predisposed, chronic inflammatory and pruritic (itchy) skin disease affecting over 10% to 15% of companion animals.

Under clinical veterinary dermatology guidelines published by the International Committee on Allergic Diseases of Animals (ICADA) and the American College of Veterinary Dermatology (ACVD):

The Allergy Triad & Seasonality:
1. Environmental Atopy (Pollen, Grasses, Dust Mites, Mold): Spikes in Spring/Late Summer; seasonal flares
2. Flea Allergy Dermatitis (FAD): A single flea bite causes severe tail-base alopecia and crusting
3. Adverse Food Reactions (Food Allergy): Non-seasonal year-round itching (Allergic to beef, chicken, dairy proteins)
The Cytokine Mechanism: Interleukin-31 (IL-31) binds to neural receptors, triggering intense pruritus (the itch-scratch cycle)

Target Manifestations: Paws, Ears, and Skin

Unlike humans who sneeze and get watery eyes, allergic dogs and cats manifest allergies through their skin:

• Chronic Pododermatitis: Obsessive licking, chewing, and staining paws reddish-brown from salivary porphyrins.
• Recurrent Otitis Externa: Yeast (Malassezia) and bacterial ear infections.
• Targeted Targeted Therapies: Modern veterinary biologics (Cytopoint IL-31 monoclonal antibodies) and JAK inhibitors (Apoquel / Oclacitinib) stop the neural itch signal at the cellular level without the damaging side effects of systemic steroids.

Analyze skin conditions with Skin Condition Analyzer, estimate vet exam costs via Pet Vet Visit Cost Estimator, check air quality risks using Air Quality Impact Assessor, and explore dermatology research at ACVD.