Bullous pemphigoid (BP) and dermatitis herpetiformis (DH) are chronic subepidermal bullous diseases, which progress together with an itch and an inflammatory reaction. These symptoms may be the cause of a phenomenon described in the literature as a neurogenic skin inflammation. Neuropeptides are one of the mediators which take part in this process. The aim of our study was to indicate the expression of selected neuropeptides - CRF (corticotropin releasing factor), CGRP (calcitonin gene-related peptide), NKB (neurokinin B), SP (substance P) and the receptor for endothelin B (ETRB) - in the skin of patients suffering from BP or DH. A significantly increased expression of CRF was found in the specimen collected from the skin lesions of patients with BP and DH as well as a significantly increased expression of receptor for endothelin B in the patients with DH by the immunohistochemical method. The results obtained give evidence of a possible participation of CRF and receptor for endothelin B in the pathogenesis of the itch in the dermatitis herpetiformis as well as CRF in bullous pemphigoid.