I wish you had called the doctor sooner, but glad you spoke to someone. Make sure it's put on the front of your medical chart. I am also allergic to tetnus, and that can be a sticking point with some doctors as they assume everyone can take it. You need to also find out the kind of ingredients in the shot, as I think there are different kinds? (I may be confused here) but check so you know how much of what you got, and make note on the kind and length of reaction.