“…Treatments including antibiotics [9], estrogen [9], niacin [9], colchicine [2], vitamin E, corticosteroids [9], etretinate [2, 9], diaminodiphenylsulphone (dapsone) [1, 2, 9, 10], sulfapyridine [2, 10]and PUVA [2]have been proposed. However, none of these drugs has been uniformly successful.…”