I would take a picture of it and email it to Catherine Caton. She's the widow of Greg Caton, who was completely persecuted for healing people with black salve. My husband used black salve on some precancerous moles and they're gone now. I used Bloodroot paste on some 30yr old plantar warts that I was just about ready to have cut out, but by reading, even after they're cut out "by the root" they return. See altcancer.com or herbhealers.com.