I was given liquid vicodin only for pain and in hindsight, probably could have used something stronger. Your dad has a long way to go in his treatment. I'm with Brian...I would talk to Dr about a feeding tube as well as pain management issue.

SCC tonsil(left) with contralateral mets. Modified right neck disection August, 2002. 33 rads(62 gy)both sides of neck and 3 cycles cisplatin completed October 25, 2002. 34 yo at time of diagnosis