The diagnosis of allergy is always a purely clinical diagnosis resulting from a thorough history (age, race, seasonality) and the appropriate clinical examination.
The allergy test should only serve to identify the triggering allergens in order to then specifically avoid them or to be able to carry out an allergen-specific immunotherapy (ASIT, hyposensitisation). The main allergens are mites (house dust and storage mites), pollen (grass, herb and tree pollen), fungal spores and flea saliva (dog and cat) or insects (horse).
In dogs, atopic dermatitis is the second most common non-infectious skin disease. It manifests itself mainly between 6 months and 3 years of age and is accompanied by typical skin symptoms (primarily itching sine materia). The clinical picture of the cat is more similar to that of the horse than to the dog, and it often shows respiratory symptoms such as feline allergic bronchitis, asthma and rhinitis. However, dermatological lesions such as miliary dermatitis, self-induced alopecia, excoriations/ulcerations and clinical manifestations from the eosinophilic granuloma complex may also occur.