Itchy skin, chronic ear infections, and nonstop licking can turn a happy dog miserable fast. Dog allergies are common in Canada, especially when seasonal pollen spikes or dry winter air irritates already-sensitive skin. Here’s how to spot the signs and what actually helps.

Symptoms: What Dog Allergies Look Like

Allergies don’t always show up as sneezing. Many dogs react through their skin and ears. Watch for:

Persistent itching (scratching, rubbing face, chewing paws)
Red, inflamed skin, hot spots, or recurring rashes
Frequent ear infections or head shaking
Watery eyes, runny nose, or mild coughing
GI signs (vomiting/diarrhea) more typical of food allergies

See a vet promptly if your dog has open sores, bad odour from ears, or signs of infection—delaying treatment often makes allergies harder (and pricier) to manage.

Causes: Food, Fleas, and the Environment

Most canine allergies fall into three buckets:

Environmental (atopic) allergies: pollen, mould, dust mites. In many Canadian regions, spring and late-summer ragweed can be rough.
Flea allergy dermatitis: a single bite can trigger intense itching. Even indoor dogs can be exposed.
Food allergies: usually proteins (chicken, beef, dairy) rather than grains.

Note: “Hypoallergenic” labels aren’t a diagnosis—confirm triggers with your veterinarian.

Treatments: What Works (and What to Do at Home)

Flea control year-round: ask your vet about prescription preventives available in Canada.
Targeted meds: modern options (e.g., Apoquel, Cytopoint) can reduce itch with fewer side effects than long-term steroids.
Diet trial: do an 8–12 week vet-guided elimination diet; avoid flavoured treats during the trial.
Skin support: rinse paws after walks, use a vet-approved anti-itch shampoo, and consider omega-3s if recommended.
Allergy testing & immunotherapy: useful for environmental allergies when symptoms are persistent.

Bottom line: Dog allergies are manageable with the right plan. Track symptoms, control fleas, and partner with your vet to pinpoint triggers—your dog’s skin (and sleep) will thank you.