Epidural blood patch

So I had my daughter a week ago and the lady messed up my epidural the first time and had to take it all out and redo it. Anyways I instantly got a headache from it and nothing has made it go away. I have taken pain killers every 6 hours for a week now and nothing is helping. Today it feels like something is on my chest. So I called the doctor and they want to do an epidural blood patch tomorrow. Have any of you had this? Did it work?