If you apply a portion of a nitroglycerin patch to the bite area (sooner the better) it prevents the vasoconstrictor portion of the venom from shutting circulation to the bite area and it disperses and gets processed through your body quickly without the necrotic rot hole developing.
Dang! Didn’t have one in my medicine cabinet!
Didn’t feel the bite at all, just saw the “divot” in my leg the next morning.
Bet heat would work to vasodilate.
Keep your advice in mind if it ever happens again. THX.