Herpetiform dermatitis is an autoimmuneampollae disease characterized by an pruriginouspapulovesicular eruption associated with IgA granulardermical papillayr deposites which are detected by DIF. Thisskin disease has relation to non symptomatical glutensensible intestinal illness. Microscopical examination showmicroabscess with many neutrophilous, eosonophilous in dermis papille and lymphocyte T, neutrophilous,eosinophilous infiltration. Disease pathogenesis is not knownand is considered type IgA complex illness. The effectivetreatment is done with dapsone and a free gluten diet