Oh @Eve64 what you are experiencing does sound really painful.
No I am afraid that I cannot help you.
Is it a medical person that has diagnosed peripheral neuropathy?
If not it might be worth going to your GP first to see what they can suggest and if you feel it is linked to blood cancer then perhaps your special nurse or consultant should know.
Please do stress how painful your feet are and the impact on your life.
Please let us know how you get on and really look after yourself.