KillerB,
In terms of 1st world medical advice regarding
snake bite, it's pretty much across the board that
Tourniquets, incisions and vacuuming are no no.
Even with a pressure bandage it has to be done
correctly, even the 'Pros' don't always get it right.
Some advise not applying such for the risk of
getting it wrong and doing more harm than good.
There are other deciding factors such as what type
of toxin..eg: neurotoxin(elapids) Vs haemotoxin(vipers).
but it's not always that simplistic, for some vipers
can deliver nuerotoxin and some elapids haemotoxin.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550186/Interesting enough, snake venom contains a catalyst enzyme
Phospholipase A2, which is naturally in the human body
playing an important role in immune system inflammation response
where it is responsible for cell membrane degradation.
