Hi Amy: Since alcohol is implicated as a caustive factor of oral cancer,either by itself or in combination with smoking, I would think that drinking any alcohol would be a bad idea, especially during treatment.
It sounds like he is using the alcohol as a coping mechanism to deal w/anxiety. I think this is something that should be discussed with his doctors. If he won't or can't discuss it with them, you should. There are other ways to deal with anxiety, including walking (exercise), talking (therapist, friends), meds, meditation, etc. Good luck! Candace
sister to man w/base of tongue cancer, stage IV, Dx 4/03, finished Tx 9/03. 12 clear exams so far.