Flea Allergy Dermatitis in Dogs: Advanced Welfare Guide
An in-depth guide to flea allergy dermatitis, the most common skin disease in dogs, covering welfare impacts and management.
Key Facts
FAD is caused by hypersensitivity to flea saliva, not flea burden alone
Even a single flea bite can trigger intense reactions in sensitised dogs
Signs include intense itching, hair loss, and skin infection over the back and rump
Secondary bacterial and yeast infections complicate the condition
Year-round flea control on all pets and in the environment is essential
Allergen-specific immunotherapy may desensitise affected dogs over time
Welfare Considerations and Management
Welfare-centred FAD management requires rigorous flea control combined with management of the hypersensitivity reaction. All pets in the household must be treated with prescription-strength flea control monthly. Environmental treatment eliminates flea eggs and larvae from carpets and soft furnishings. Oclacitinib or corticosteroids control itch during flares. Secondary infection requires antimicrobial treatment. Immunotherapy may reduce sensitisation over the long term.
What You Can Do
Treat all household pets with veterinary-prescription flea control year-round
Treat the home environment with appropriate household flea spray
Seek veterinary treatment for secondary skin infections promptly
Consider allergen-specific immunotherapy for dogs with severe, recurrent FAD