You are awesome for encouraging him to go home and visit relatives... very strong and sweet of you to be so understanding! So #1 remember you rock.
#2 Sorry the meds are making you crazy- no advice from me since I haven't been there (yet) but remember the holidays make you crazy before you ever get to the altering your body's chemistry so you do have a triple whammy.
Hope you're feeling better soon! Happy thoughts to you :-)