[Acute or chronic food allergy: adapted therapeutic and diagnostic procedure].

In food allergy the allergen may present two very different clinical pictures: acute allergy (urticaria, bronchospasm, anaphylaxis) and chronic food allergy (eczema, rhinitis, digestive problems). These two syndromes are rarely separated in the literature on the subject although positive diagnosis is made on very different elements in the two cases. Furthermore, therapy, especially the diet, must be adapted in the two different cases of allergy.