Got a wallop on the foot off a black scorpion in India many years ago. Unbelievable pain...started rising up the leg. Was dragged to the nearest franzipani tree, where the leaves were hastily mashed in my saviours hands, and the paste rubbed in a downward motion down the leg. Much to my surprise, the pain began to retreat back down the leg, until it was confined to the foot. Was relaibly informed that if this had not been done, and the venom had passed from the leg to the body, you would'nt be reading this now. Not surprisingly, I firmly believe in the power of leaves!