I had this done one week ago for herniation at L4/5 - instant relief for one week. I wasn’t expecting it to work so soon. I couldn’t feel any tingling in my foot or sciatic or back pain at all through this week, until yesterday when I got a spasm. Now it’s all back to almost the level it was before! Is this normal? I don’t see my consultant for weeks (don’t even have an appt yet) and I am tearing my hair out as this is affecting so many elements of my life for 7+ months now 