[Dermatology-allergy study in occupational medicine].

Dermatological investigation and study of allergy in occupational medicine requires careful interrogation and clinical examination, a study of professional gesture, patch tests and other tests to research a possible contact allergen, and open tests and prick tests if a contact urticaria is suspected. Tests have to be interpreted with clinical data and environment to try to establish their relevance. This investigation will sometimes result on a possible change of post or occupation, and declaration of occupational disease.