[Generalized urticaria due to food allergy (codfish)].

A case of generalized urticaria after ingesta of raw cod in a patient who had any previous episodes of atopy or other findings of interest is presented. One month after the manipulation of this same food she presented another episode of generalized urticaria, this time more severe and persistent. Skin patches to cod provoked a contact urticaria probably produced by an immunologic mechanism. A sensitization via the digestive tract is presumed on the basis of the clinical course and the symptoms of the patient.