the only advice i could give is this, stress=ocd symptoms...
when things are going well for me, i feel great... i still obsess a little but it doesnt bother me...
when im stressed, i blow up... obsessing... worrying... anxiety...
so my advice would be, just be there for him... support him...
i was feeling great again until a month ago when my ex-girlfriend and i broke up... she was being difficult... not moving out of the apartment, and low and behold my OCD started kicking my *** all over the place...
the odd thing is, i make this connection, but you still obsess... its just how it is...
im not a dr. so i cant give you any solid advice, but as someone else on this board also suggested, get the book "brain lock"... it will help you understand what he is going through and perhaps you can give him some tips to relax...
hope this helps!
Eric