A) if you're TRULY trying to heal a snake you care about do some research on your animal, LEAVE IT HOME and provide proper care. Maybe, MAYBE in a year or two once the animal is healthy and you've had time to properly bond and develop a mutual trust, then start thinking about bringing it on stage. But for the love of the animal, LEAVE IT HOME.
B) Just because you see others doing it doesn't mean you know their husbandry practices, know if the animals are stressed, ill, etc... And with your limited knowledge I'm not sure you would know the difference anyway.
I know several people who do LOTS of stupid stuff, that doesn't mean I should.
Honestly, PLEASE do that snake a favor and STOP using it as a prop (I know, you'll argue it's not a prop, but by definition, it IS a dance prop).
Learn about your animal and raise it properly. I know you may be traveling soon based on a previous thread. If that's the case, rehome the animal or find a QUALIFIED friend or family member to care for it in your absence. Just DON'T take the snake with you.