Hi, Doctor I Have A Query About Cancer Disease My

Hi,
Doctor I have a query about cancer disease my Maternal Grand mother who have affected by lung cancer.
she has diagnosed by Village doctor through CT Scan in Bihar. Doctor gave suggestion that there is no cure of this because it is last stage of this. I want to know that if person going to last stage of this stage than how to save there life. Please send me your suggestion.

Thanking You