From publisher blurb:
The Snake Charmer is a character role expansion to The Carcass. The Snake Charmer is a medical expert in a world without medicine. Using unconventional methods to heal the sick and focus the mind, this new role may help in games where too many people are dying.
Or maybe make things worse.
The Carcass is a roleplaying story game where players take on the roles of the last members of a dying post-apocalyptic tribe. The tribal leader is dead, the community in tatters, and the future a mystery. What will become of you in this barren wasteland?