Seeing the blazing fireball setting a tree on fire, warming Ada's face from afar. She approached Osira, who has been cursing in pain over 10 times now. "Let me cut the place where it bit you, my mother told me that's how I can get most of the Venom out."
Trying not to offend Ada even at such a state, Osira shouted at first. "No!" And afterwards continued to explain, "That's a bad idea, it doesn't work and I can get an infection."
In a blink, she remembered how a couple of men in her tribe fared when they were bitten by a snake and sliced the wound to get the venom out. The infection was so bad, that the arm had to be completely cut off in aims of survival.
They did not survive, died a few days after. Not because of the Venom, but because the infection. Apparently the snake that bit them wasn't even a venomous one. So we can call this tremendously bad luck with a hunch of being misinformed.