I have heard this, it works with marine venoms usually, and if we could stung on the finger this is an interesting concept.How about dipping the envenomed part to very hot water? Will that break down the protein or will it speed up its effects?
In milk protein, whey is broken down and killed by heat, casein is not effected. Meaning some will break down, some won't.
If it doesn't work, it will increase blood circulation... moving the venom around. I believe the point in the blood not moving around, is not having it hit your sensitive areas so early, and allow your body time to fight the venom.