In the 90s I had lidocaine injected locally when I was desperate and had no idea what was going on. I thought it was from the RSD I had after the severe sprain or the surgery for a neuroma that developed on top of damaged area. But had not heard of neuropathy. Around 2002 I had a series of nerve blocks done at my spine - the last one was supposed to be a permanent one. It lasted 3 years almost before it all started up again when the neuroma returned. Finally had surgery in 2017 when it was getting pretty big and the neuropathy was not being helped by the tramadol any longer. There were other meds tried earlier - OxyContin being the worst