Companion Animals

Companion Dog Flea Allergy Dermatitis

Flea allergy dermatitis causes extreme pruritus from sensitivity to flea saliva, with even single flea bites triggering prolonged reactions in sensitized dogs.

Key Facts

FAD is the most common skin disease in dogs in warm climates
Sensitized dogs react intensely to a single flea bite for up to two weeks
Secondary bacterial infections complicate the chronic skin damage from scratching
Year-round flea prevention is required for dogs with confirmed FAD

Welfare Considerations

Flea allergy dermatitis causes constant pruritus that severely disrupts sleep, normal behavior, and quality of life. Affected dogs scratch and chew themselves continuously, causing self-inflicted wounds and secondary infections. Rigorous flea prevention provides dramatic relief and represents one of the highest-impact welfare interventions.

What You Can Do

Maintain year-round flea prevention for dogs with confirmed FAD
Treat all pets in the household and the home environment simultaneously
Consult a dermatologist vet for dogs with chronic or severe skin disease
Discuss allergy testing and immunotherapy for severely affected dogs