my husband was doing ok with the radiation until last week they gave him a week break but he is having problems eating her has pain in his throat bad enough that he has trouble swallowing. he has a really bad taste in his mouth which makes it difficult to keep anything down. he can still drink water but throws up any time he takes pain meds or anti nausea meds. worried about what i shoud do. any sugestions? did anyone have these problems with radiation?