I don't know if the snake bite thing will do the same. I got bite by brown recluse years ago. It bite me in bed while I was sleeping. I'm a hard sleeper. It woke me up. It Hurt!!! I must of smashed it. I found it 2 days later on the floor up against the wall. I didn't know what bite me till then. But, I did know it must have been a spider. I didn't know about the charcoal thing till much later. It was too late for me by then. I had a huge area on my leg where the skin was raw and and dissolving like. The doctor put me on antibiotics. Not much more they could do but I kept putting some type of ointment on it. The pain kept shooting down my leg. It was like 6 months till it finally started healing.

I did research and came across charcoal solution. It was too late for me to use it. But, my dog got bit on her tail. She went to lie down and she screamed. Started running in circles with her tail down to her side. I looked where she had lied down and saw it. I knew what to do. I had some activated charcoal from a fish tank. It wasn't used. I used a mortar and pestle to grind it and added a little water to make paste. I could see the bite. it was swelling. I put the paste on it and used one of those bandages that you wrap around that sticks to itself to hold the paste on. I took it off after 4 hours and there was no swelling and little spot of red where it bit her. She never had any skin die around that spot. It worked.