@cghernand ~ I felt the same, hopeful but nervous. It's difficult to explain the feeling. They had me lie face down on a padded table, similar to a massage table where my face was over an opening and I was looking at the floor. My injection was to target the nerves causing sciatic pain in my left leg. They cleaned the area just above my tailbone and to the left side of my spine and numbed it. Using an xray machine, they injected a tiny amount of contrast so they could see the area well. My doctor described it as "pressure" and "warmth" that I would feel, and he was pretty accurate. I felt pressure as he inserted the needle, and then a feeling of warmth as the steroid was given, over a period of about 5 times. It's not what I would call pain, although everyone has different pain threshholds. But I said "Oh!" each time, and he walked me through each section, asking if I was ok and if I was feeling it where the pain was the worst in my low back and left buttock. He said my reactions were actually helpful in knowing he was exactly in the right area. Your experience might be somewhat similar. Don't be afraid. It will help, especially if you're having low back pain and/or sciatica. That night the injection site was very sore after the numbing agent wore off. I took Ibuprofin and put ice on it. By the next morning, that pain was gone. I hope I haven't said anything to frighten you here, but to encourage you that this will help, and I'm praying that it does, and that it lasts a long time!