Botulinum toxin type A for the treatment of localized recalcitrant chronic pruritus

To the Editor: Localized chronic pruritus is a common condition that significantly affects health-related quality of life. A variety of diseases result in localized chronic itch, which can be broadly classified as dermatologic, neuropathic, or psychogenic in nature. For patients with chronic pruritus that is refractory to conventional therapy, the burden of disease is substantial.