Metastatic Gall Bladder Cancer. Consult!

My mother(72 years) has been diagnosed with  advanced state Gall bladder cancer (Adenocarcinoma) after Ultrasound and FNAC (GB FOSSA MASS) on around Sep 6th, 2022. An ERCP was done to control her increasing jaundice. She can take fluid/juice only. Afterwards, we contacted Tata Memorial centre, Mumbai, and they advised us to take care of her at home. The impression we got from there is that she is probably too old to be given chemo/radiotherapy.                   I have heard about immunotherapy via youtube talks and feel that there is still some hope in allopathy if we try our best, but are unable to get a doctor who would give us hope. So we are trying ayurveda, but we are sceptical about it.                     I would therefore like to request you to kindly suggest to me if there is anything that can be done to improve her health.? Any suggestion would be highly appreciated. Also, whom should we consult regarding pain, vomiting, and diarrhea that's occuring at this stage?