Neutrophilic skin disease (ND) is a group of diseases with similar histopathological changes, pathogenesis and treatment methods. Histologically, they are characterized by perivascular and diffuse neutrophil infiltration without any definite infectious factors.Skin lesions may appear in a variety of ways, limited or extensive;Common types include Sweet syndrome, gangrenous pyoderma, leucocele’s disease and subkeratotic pustular disease.It is worth noting that in …