Feline hypersensitivity dermatitis — including flea allergy, food allergy, and atopic disease — causes chronic itching, skin damage, and significant suffering in cats. Accurate diagnosis and effective management transforms quality of life for affected animals.
Feline allergic skin disease causes chronic pruritus — persistent itching — that profoundly impairs quality of life. Affected cats over-groom to the point of self-trauma, developing bald patches, skin abrasions, and secondary bacterial infections. The itch-scratch cycle is distressing and persistent; without treatment, cats may spend hours daily in uncomfortable self-grooming. Owner misidentification of the problem — attributing hair loss to moulting, stress, or boredom — delays treatment and prolongs suffering. Effective management requires accurate diagnosis of the specific allergen trigger, which requires systematic investigation: flea control first (all household pets, all year round), then a dietary trial if flea control does not resolve the problem, then environmental investigation. Symptomatic relief from corticosteroids or newer targeted immunomodulatory drugs provides welfare benefit while investigation proceeds, but long-term management requires addressing the underlying cause.