I have a rash on the backside of my thigh and it has been growing at an alarming rate. When I itch it, something underneath the skin vibrates and makes a buzzing sound. It started when I was bitten by a rhinospider while traversing the Congo. A week ago it was the size of a dime, and now it covers the entire back of the leg. I have started to crave the taste of manflesh. What can I do?