Hi Marisa, it is a difficult decision and your FIL may be taking hospice as people around him giving up on him. Kindly discuss with your doctor if it is possible to continue as pallative treatment with some pain medication till the time he can tolerate. He may just have probably few weeks or months atleast if that can give him peace of mind.

Father; 67 yrs; RIP: 2012/05/26

TX:SCC pT2N1M0G2;Glossectomy+SND+CCRT(59.3Gy+6xCis.)[2009]
TX:Nodal Mets; 3xDCF[2011/05/05]
TX: RND + PMMC Flap[2011/07/11]
DX:SCC PNI+ECE
TX:Re-RT 60Gy[2011/09/21]
TX:Gefitinib 250mg[2011/12/18]