[The irritable skin syndrome ("Angry Back syndrome")]

Twenty eight patients with allergic contact dermatitis were studied by epicutaneous tests, which showed 88 positive reactions. Re-tested 2-3 months later with the same allergen of the positive reactions, 14 were negative (15.9%). This decrease can be due to the Excited Skin Syndrome. The causes which can provoke false positive cutaneous reactions are considered and the inherent to this syndrome, also called "Angry Back Syndrome" are analyzed.