How do I know my nerves are healing?

I have peripheral nerve damage from chemo and up until recently I was getting used to the pain. Lately, I have been using colostrum and b12 to promote healing, I was told by my doctor nerves regenerate as long as they aren't damaged completely and there's nothing continuing damage. I removed the factor (the chemo) so it makes sense to only get better. Is the burning and pain feeling signs of the nerves starting to regenerate? Healing crisis it's called I think.