I want to thank everyone who had responded to my posts. My dad is doing a little bit better than how he was over the weekend. He stopped throwing up!!!!! We now think it may have been the stomach flu (keeping fingers crossed).
We asked about the patch and they said to give him tylenol 3 instead. His bottom lip has gotten very swollen since beginning radiation and we're not sure if he is maybe allergic to something they put in his mouth during radiation. The doctors said that the radiation is not going near his lip, so they don't think it is from the radiation. My sister read that the codeine may cause allergic reactions as well, we're not sure.
He also is getting large amounts of phlegm. Anyone have any good tips on helping with the phlegm? He doesn't really drink anything yet, though I do manage to get him to eat some ice chips. Can't wait to have him finish radiation.