Hi and welcome! I'm very sorry about
the circumstances which have led you here though!
Lupus pernio is actually a skin manifestation of sarcoidosis.....which is almost all I know. I don't actually have it. It's possible someone here will respond who does know more. I hope so!
Sarcoidosis can range from mild to quite serious. Here is a link to a blog written by someone with the serious kind:
chronicville.wordpress.com/I love this blog; Rebecca is a
wonderful writer and she will respond to you if you try to contact her, as long as she's able to (she's been very ill recently).
Good luck! Please keep us posted!
JoAnn