Hi. Wow. I can’t imagine putting my feet even in cold water, much less ice water. Besides burning P. and tingling, the PN makes my hands and feet feel extremely cold to the point that they feel like frostbite (I’m guessing that hurts) if the room or weather is too cold. My husband has felt my feet and said they do not feel cold to the touch. But to me, they feel like they are freezing and I have to put heating pads on them to warm them up. What works for one might not work for another. But I appreciate any ideas that might help.