Hi @roslyn2314 - You might want to read through the following discussion to learn what others have shared on the IVIG treatments for neuropathy.

--- IVIG Infusions: https://connect.mayoclinic.org/discussion/ivig-infusions/

I have Long fiber axonal neuropathy, probably caused by an autoimmune reaction to either spinal fusion surgery, medication, anesthesia, or unrelated infections before and after surgery.
Two neurologists agreed that iVIG could be helpful in reducing nerve inflammation, and monthly infusions, along with PT in a pool and at a clinic, have helped build up my quad function. This has allowed me to put more weight on my legs instead of my arms and shoulders when walking with a walker. My transfers are also smoother. This translates into no falls in months and greater confidence in moving around my house and deck on my walker. So, I will continue the infusions, even though the sessions each month take up about 5 afternoons.
I hope this helps.