Okay, so you just got back from saving the world from aliens by walking day and night in snow and rain to the military base near-by to tell them the secret weak-spot in between the arms of the aliens. Good job -insert your name here-, but what's this? Strange grey skin on your cold begotten hands? Could his be some new alien disease you've contracted?! No, silly, it's frostbite.
Even these clothespins are cold.
In order to treat frostbite, we need to determine the severity of the frostbite.
Frostnip - Painful sensation, red skin, skin still responds normally to pressure.
Superficial Frostbite - Numbness, white to greyish skin color, skin still feels soft
Deep Frostbite - Numbness, white to greyish-yellow skin color, skin feels unusually firm and waxy.