Hi there,
I had PN in my hands and ribs. It was very painful but I cannot remember my hands getting hot. I had 2 vertebral wedge fractures which trapped nerves to cause the PN. I had nerve block injections in my spine and take Gabapentin regularly which has completely dealt with the PN.
Please have a discussion with your medical team about it, I am sure they will be able to help. Let us know how you get on. Keep your chin up.
Regards, Tony