A skin engagement member is provided herein for use with a needle assembly or a medical injector to minimize irritation of a patients skin surrounding an injection site during injection by a needle of the needle assembly or medical injector. The skin engagement member includes: a body a surface defined on the body for engaging the patients skin during injection by the needle an aperture formed through the body configured to permit passage therethrough of the needle and, rotatable mounting features for rotatably mounting the body to the needle assembly or medical injector such that the surface, while engaging the patients skin, is rotatable about the aperture. Advantageously, with the subject invention, a skin engagement member may be located in engagement with a patients skin which, due to pressure applied during injection, may be held in a generally fixed position against the skin with rotation of the injector about the skin engagement member being permitted. Accordingly, irritation of the patients skin about the injection site may be minimized.