I stepped on a nail?!

I stepped on a nail?

i just stepped on a nail like 30 min. ago. and it refuses to bleed and i dont know how dirty the nail was. but there is something in my foot and its not the nail. its on my heel and it itches and burns at the same time. i havent had a tetnus shot since probably 3rd or 4th grade, and i am 21 now. i hate getting shots so i am trying to avoid that for right now. can anyone help me?

If you have a dirty wound you must get a tetanus shot if it has been over 5 years since your last booster. Since it has been over 10, you need to get both tetanus toxoid (the booster) as well as tetanus immunoglobulin (antibodies against tetanus). If you don't and the nail was contaminated then may get the tetanus infection which involves spastic paralysis of all of your muscles. It is one of the most painful ways to die. Go get a shot.