Fun idea, but it seems like sometimes, dropping the patient's life to zero to cure their last symptom will kill them, while other times it saves them. It's inconsistent, and I can't tell why it works sometimes but not others.
Thanks for the feedback! I did a quick patch which I hope should solve it. Any more dev time and I'm probably going to pass the 3 hour mark, so any more bugs might have to stay until after the jam :)