Welcome!
I'm sorry to hear about your sister's desperate situation. Ultimately, it is her decision to make whether to seek treatment or not. What does the current doctor(s) recommend? If you can, convince her to get a second opinion about treatment options.

Good luck
Don

Don
Male, 57 - Great health except C
Dec '12
DX: BOT SCC T2N2bMx, Stage 4a, HPV+, multiple nodes
1 tooth out
Jan '13
2nd tooth out
Tumor Board -induction TPF (3 cycles), seq CRT
4-6/2013
CRT 70gr 2x35, weekly carbo150
ended 5/29,6/4
All the details, join at http://beatdown.cognacom.com