Dog Allergies: Symptoms and Treatments 2026
Is your dog itching constantly? Learn to identify food, environmental, and flea allergies in dogs, plus the latest treatments vets recommend.
Understanding Dog Allergies
Allergies affect up to 20 percent of dogs, causing persistent itching, skin infections, and ear problems. Identifying the type of allergy is the first step.
Three Main Types
Flea allergy dermatitis: The most common allergy, triggered by flea saliva. Even one bite causes intense itching. Environmental allergies: Reactions to pollen, dust mites, and mold. Food allergies: Reactions to proteins like chicken, beef, or dairy.
Common Symptoms
- Excessive scratching and licking
- Red, inflamed skin or rashes
- Recurring ear infections
- Hot spots — moist, infected lesions
- Chronic paw chewing
Treatment Options
Modern veterinary medicine offers Cytopoint injections, Apoquel tablets, hypoallergenic diets, immunotherapy, and medicated shampoos. Your vet will recommend a treatment plan based on severity.
Dr. Hannah Wickes
All our authors care for dogs every day — read more of their work on the authors page.
