Hailey-Hailey disease, also called benign familial chronic pemphigus, is a rare autosomal dominant disorder characterized by recurrent painful blistering, erosions, maceration in the intertriginous regions. 1,2 Hailey-Hailey disease is caused by mutations in the ATP2C1 gene located on chromosome 3q21-q24, whose function is to transport Ca 2+ /Mn 2+ into the Golgi apparatus and maintain normal intracellular concentrations of Ca 2+ /Mn 2+3 . The appearance of "dilapidated brick wall" was a characteristic histopathologic change of Hailey-Hailey disease. 4 Severe impairment of quality of life was observed in Hailey-Hailey disease in the aspects of symptoms, emotions, and social functioning. 5 Nowadays, treatment options for Hailey-Hailey disease include corticosteroids, antibiotics, botulinum toxin, CO 2 ablation laser, and dermabrasion. 6 CO 2 laser therapy as a long-term treatment option for Hailey-Hailey disease has been systematically reviewed, offering an effective and safe treatment option with minimal side effects. 7 Botulinum toxin has also been widely used in cosmetic dermatology, noncosmetic dermatology, and nondermatological indications. [8][9][10][11][12][13] As early as 2000, it was applied in a patient with Hailey-Hailey disease and provided a sustained