instruction: hi doctor before two years my father was diagnosed with prostate cancer and has been undergoing treatment using eligard and xgeva early this year he got diagnosed with vallecula carcinoma and for which he underwent chemo erbitux six sitting and radiation therapy for 27 days while vallecula seems to have subsided he is now detected with tumor in some of the lymph nodes and for which operation has been recommended by the doctor also as observed in pet scan cancer seems to be spreading to other parts as there are some areas highlighted in the lower part of the lungs doctor has not given clear guidance about that we have been exploring the other options to retard spread of his cancer we need your guidance on therapies that can be considered to extend his healthy life span he is 73 years old wanted to check around immunotherapy for treatment and its availability thank you
output: hi I went through the details of your father illness and I will concentrate on the present problem for further information consult a medical oncologist online