Hi, Debbie.  Under the circumstances, maybe your husband could get a doctor's statement that says he is not able to work for X number of weeks and he could go on short-term disability.  The doctor could also prescribe him something like a small dose of Klonopin to calm him enough to get to work until he can see a mental health professional.  Is this person going to be a psychiatrist?  That's what he really needs for these kinds of medication.  A therapist is great, but he'll need a psychiatrist who specializes in medication management for mood disorders.

If he could even get a leave for a week or two, it might help, especially if he's also given something more sedating.  It would give him time to get used to that medication because it might make him sleepy at first.  It would be no different than needing to be on leave because of a surgical procedure.

I hope something works so he doesn't lose his job - that wouldn't be right because he's not well.  Please let me know what happens - I've been in this position and was able to take a leave of absence.  I wish you the best.