So far I'm giving cash which is always useful and some Biotene products which, if he doesn't use now, he might need later. He's the type of person who likely won't ask for anything so that's why I'm giving "care packages" without asking first. He lives far from me but hopefully he will let me know via e-mail, text, or phone (if he can speak) if he needs anything else specific. I am willing to drive up to him when I can if needed but he may not be comfortable with that. And since I work full-time my availability may not match up with his needs anyway.
Thanks for your thoughtful response Christine and I wish you all the best!!