Pocket VetAllergies in dogs
If your dog is forever itching, licking paws, or fighting ear infections, allergies are the usual suspect. They're managed, not cured — but managed well, dogs are comfortable.
What it is
Three main types: flea-allergy (a single bite triggers intense itching), environmental/atopy (pollens, dust mites — often seasonal), and food allergy (usually a protein like chicken or beef). All present mostly as itchy skin and ears rather than sneezing.
Symptoms
- ●Itching, scratching, paw licking or chewing
- ●Red skin, recurrent hot spots
- ●Frequent ear infections
- ●Hair loss above the tail (classic flea allergy)
- ●Rubbing the face or scooting
🔴 When to act now
- ●Sudden facial swelling or hives after a sting/new food, especially with breathing trouble — emergency (possible anaphylaxis)
Treatment & management
Strict flea control is step one for any itchy dog. Food allergies need a vet-guided elimination diet (8+ weeks, nothing else). Atopy is managed with modern anti-itch medications, medicated shampoos, omega-3s, and sometimes immunotherapy. Untreated allergy spirals into skin infection, so see a vet rather than just bathing more.
Seeing these signs in your dog?
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Check my dog nowFrequently asked
What's the most common allergy in dogs?
Flea-allergy dermatitis — a single flea bite can keep a sensitised dog itching for weeks. That's why vets insist on strict flea control before chasing other causes.
Can I test my dog for food allergies?
Blood/saliva tests are unreliable. The gold standard is a vet-guided elimination diet for 8+ weeks with a novel or hydrolysed protein and absolutely nothing else, then re-challenge.
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Pocket Vet editorial team
Written and maintained by the Pocket Vet editorial team using authoritative veterinary sources. Reviewed June 9, 2026. This guide is informational only and not a substitute for professional veterinary care — see our editorial & safety policy. When in doubt, contact your vet; in a true emergency, go to an emergency clinic immediately.
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