de Aquino Paulo Filho T, Rodrigues de Freitas YK, Torres Andrade da Nóbrega M, et al. Hailey-Hailey disease associated with herpetic eczema—the value of the Tzanck smear test. Dermatol Pract Concept. Published online October 31, 2014. doi:10.5826/dpc.0404a04