I'm not sure about this. I found it on the google...
Mixing a poultice of activated charcoal with a bit of water and cornstarch or flaxseed powder can help cure bee stings, poison ivy rashes, snake bites, spider bites (including highly poisoning bites from the Brown Recluse or Black Widow), and other poisoning bites.
Mixing a poultice of activated charcoal with a bit of water and cornstarch or flaxseed powder can help cure bee stings, poison ivy rashes, snake bites, spider bites (including highly poisoning bites from the Brown Recluse or Black Widow), and other poisoning bites.