Fire is the rapid oxidation of a material producing heat and light with smoke as a by product (hence why visibility is so low in a lot of CA). If one moves to close to a fire the heat will be more than the human skin can withstand and several degrees of burns can occur. 1st degree burn-reddening and mild blistering of the skin (sun burn), 2nd degree burn-blistering and burns through the cutaneous and subcutaneous tissues (the most painful), 3rd degree burn-burns that are full thickness with charing and damage to nerves (less painful than second degree burns due to nerve loss), 4th degree burns-full thickness burns with charring of bone. The humans hand is equivalent to 1% of their body mass. Use this as a tool to estimate the approximate area burned. If one suffers a full circumferential burn to an extremity, burns to the face, respiratory system, hands, or perineum (your junk). The patient should be taken to a burn center immediately.
Hope this helps with your travels. Stay safe out there.
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