Hi. I am sorry you had to endure cancer treatment alone. You are one strong person!

I have investigated ketamine infusions for chronic pain and depression. The nasal spray not so much. They wanted to perform lidocaine infusions but my primary advised against it as well as one of my pain docs, as I have had this since 2001. These meds are most effective for more recently diagnosed folks. Once I get over this workers comp BS, I will be seeking treatment elsewhere. More restorative medicine than treatments such as ketamine and spinal cord stimulators. I have had more spinal injections than I can count. Tried TENS. Tried chiropractor , which I still occasionally use. Warm/hot aqua therapy helps a lot, as does gentle range of motion and yoga. Meditation, mindfulness, CBT, mirror theory, I could go on but will not bore you. My tool kit has many things that by themselves provide marginal improvement, but all together, I can get out of bed most days. Also use distraction as another helpful tool.

Take care