I had a tetanus shot last year. The foot is saved and all is well. Starting a round of antibiotics and will monitor swelling. Hurts like a you know what.
My doctor is awesome and has a great sense of humor. When I told her the the story she said "Well I want to say talk about stepping in a bucket of crap but that wouldn't hurt this bad". Then she said if you want I can look at the blister on the butt if you need me too but honestly that will be more just for my humor of seeing it. You're fine I'm sure. You want me to order you a sitting donut.