I have severe fibromyalgia and a pinched nerve in my lower back. I have been treating with a pain specialist for 6 years. He is great! I take methadone and oxycodone for pain. My regular doctor prescribed 5% lidocaine ointment for topical use several months ago. It works very well. I told my pain doctor about it and he suggested that I have lidocaine infusions. So, I had the first one today. It hasn't done anything so far. It did make me feel "out of it". Luckily, my daughter went with me, so she could drive me home in case that happened. I guess these infusions work for approximately 2 weeks. I guess I will have to wait and see. I saw where others said that it was not very good, etc. I don't know. I just thought I would put my 2 cents in.