Comfrey powder: .01 oz in vial. "Knitbone is amazing. Many uses but it's overnight healing ability is worth it's weight in gold.
Creosote (fine crushed): .02 or .03 oz in small zip baggy. Many uses but hard to beat as a anti bacterial topical. Boil for 2 min. Soak infected area. Done. It grows all over where I am but nobody here knows what it can do but the natives.
Sawyer Extracter: Not much use with snake bites but it does have some effect on scorpion stings, another thing we have um here.

and most of the stuff mentioned above by others.

Tread lightly.