roselady, i was hospitalized for a month once, i would suggest you visiting and calling him often and it can get loonly at times. maybe send him a good book or some snack / home made food.. that is the general advice i can give .. and tell him to be patient it's not eazy i am sure i hope he gets better...
personally i was put in the hospital in the addicts section, because i was an internet games addict... now off it for 3 1/2 months ..