Berlocque Disease

BERLOCQUE DISEASE (Berlocque), Eau de Cologne Pigmentation, Berlocque Dermatitis, Dermite Pigmentee En Coulee, Dermatitis Of The Dripping Drop, - a pigmented dermatosis from the use of German cologne, more common in women, usually on open parts (face, chest) in the form of sharply defined erythematous-pigmented spots, of various sizes and shapes, dark-brown in color. Scaling is absent. Sometimes mild itching. Often occurs after preceding dermatitis or urticaria, more frequently in summer. Histologically - increased pigment in the form of melanin grains. Sometimes disappears spontaneously after several weeks. The mechanism of pigmentation is unclear. Apparently, photosensitive predisposition of the skin plays a major role, which can vary in the same individual depending on the season and atmospheric influences. It is possible that the essential oils dissolved in cologne, or other, still unknown chemical products, in the presence of a special increased sensitivity of the skin to actinic rays of the sun, provoke this reaction.