Signs Your Dog Might Have Allergies (and What to Do About It)

Learn the top 10 signs of dog allergies and how to manage food, environmental, and flea-related triggers with vet-approved solutions.


Dog allergies are common and can be triggered by food, environmental factors, or fleas. Recognizing the signs early helps you manage symptoms and improve your dog’s comfort.

Dog scratching due to allergies with hypoallergenic shampoo nearby


10 Common Signs of Dog Allergies

  1. Excessive scratching or licking
  2. Red, inflamed skin or rashes
  3. Recurring ear infections
  4. Watery eyes or nasal discharge
  5. Sneezing or coughing
  6. Hair loss or bald patches
  7. Digestive issues (vomiting, diarrhea)
  8. Swelling around the face or paws
  9. Chewing at paws or tail base
  10. Behavioral changes due to discomfort

Main Causes

  • Food allergies: proteins like beef, chicken, or dairy.
  • Environmental allergens: pollen, dust mites, mold.
  • Flea allergy dermatitis: reaction to flea saliva.
  • Contact allergies: shampoos, detergents, fabrics.

What to Do About It

  • Visit your veterinarian for diagnosis
  • Switch to hypoallergenic diets if food is the cause
  • Use flea prevention regularly
  • Keep living areas clean to reduce dust and mold
  • Consider supplements like omega-3 fatty acids

Prevention Tips

  • Regular grooming and bathing with gentle shampoos
  • Vacuum and wash bedding frequently
  • Introduce new foods slowly
  • Monitor seasonal changes (spring pollen, summer fleas)

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Disclaimer: This article provides general information only and is not a substitute for veterinary advice.

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