Eosinophilic granuloma complex is a group of skin conditions in cats driven by immune overreaction, often to parasites or allergens, causing lip ulcers, raised plaques, and skin swellings.
EGC welfare impact varies by lesion type: indolent ulcers are often painless but cause significant owner concern due to their appearance; eosinophilic plaques cause intense itch that drives compulsive licking and self-trauma, significantly affecting welfare. The cosmetic impact of lip ulcers can trigger owner decisions to euthanize for what are actually manageable, non-painful conditions. The key welfare intervention is identifying and eliminating the underlying allergen trigger - recurrent EGC treated only symptomatically with repeated corticosteroid courses without allergy investigation means repeated welfare-compromising episodes separated by temporary steroid-induced remissions. Corticosteroid side effects accumulate with repeated use, adding iatrogenic welfare burden. A thorough allergy workup including food elimination trial and environmental allergen assessment, though time-consuming, offers the prospect of remission without repeated medication.