Looks like it's bunkOne thing to keep in mind, I read in a medical magazine the snake bite can be treated with DC electricity, Hot shot, stun gun, and other forms. I have not been bitten by a snake but have a brown recluse spider and it work on that. I know several snake handlers in Texas that carry a devise called the Snake Doctor about the size of a pack of cigaretes. They have been bitten and say that they work, I would still got to a doctor though. I keep a small hot shot in my vehicles just in case. Also the pygmy rattler is the most deadly in the US. Best wishes that was a very serious bite.
https://www.sciencedirect.com/science/article/abs/pii/S0196064405823893