Hello everyone, I just got diagnosed with PN after I had MR Neurography. I had vestibulectomy 3 months ago and am still miserable and in pain. My MRN report shows that I have thicker and intense left pudendal nerve than the right one. Since I have no clear cause (no fall, surgery, trauma) my doctor advised me to have the steroids first. What determines the success rate of steroids? I'm on Lyrica but it doesn't help at all.