I had the same issue after my delivery and had the blood patch done. I am not sure if it worked, no immediate relief. The next morning I had my mom get excedrin migraine and it helped a lot. It felt like t went from a migraine to a headache. After 2 days of taking it, I was able to stop. Even the dilaudid I was on didn’t touch that headache, it was awful!! I hope yours goes away soon, mine was only during that first week.