Conversation: The conversation between human and AI assistant.
[|Human|] my sister was diagnosed with stage 4 jaw cancer, she is a heavy smoker and drinker, she had not been to a dr in over 25 years, is it too late to turn things around, how long will she live roughly, it is squamous cell most likely, as far as we know as of now.
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. If it is stage 4 squamous cell carcinoma then prognosis is poor. At this stage surgery is not possible. Only treatment options are chemotherapy and radiotherapy. Despite treatment prognosis remain poor. Life expectancy is not good in stage 4 cancer. Sorry to say but it is fact. Consult your doctor and take treatment accordingly. Hope I have answered your question, if you have any doubts then contact me at bit.ly/ Chat Doctor. Thanks for using Chat Doctor. Wish you a very good health.