Hi Billy, Sorry to hear you are hurting. Unfortunately, the stiffness and tenderness at injection site is a typical reaction for me. In fact, for me the stiffness and pain has been so severe (lasting over a week) that I have finally sworn i will never try another one. Unless the injection site is swollen, irritated, and shows signs of infection, I have a feeling your reaction is something that will just take time to ease, and probably nothing to get too worried about (though i know, that's hard when you are so uncomfortable!). Icing my neck usually helps me a little. I hope this isn't a sign of how future injections will go for you, as well; hopefully your Dr. will be able to shed some light on why your body reacted so strongly this time. Good luck, hope you're feeling better soon.