What do you think of the scorpion venom.Cuba is open now.

Sorry if this is a stupid question. While back I watched some presentation of the people who work on scorpion venom as a dye for the surgery. So the person was asked why not to use the venom internally to cure the cancer. His response was that it does destroy the tumor but it also destroys the liver or pancreas (something like that). Now I think of it. Well how about putting it in the mouth and not swallowing. Wouldn't that skip the liver since it would go straight to the blood stream ? What is your take on it?