She went to the Red Keep, cut a deal with Cersei and got the treatment from Qybern. Dead but not dead.
Her minders are carrying a lot of Febreeze.
Seriously though, I just got over throat cancer. They not only got it all with precise targeting and treatment, I've still got all my hair. Today Alex pointed out the Jeopardy 2017 champ in the audience and said "I know you're waiting to take my spot but I'm not going anywhere soon." Hell yeah!