I will chime in with one kind of IC that *does* IMHO tend to help, if applied correctly. It's called Cognitive Behavioral Therapy or CBT. The "bible" of this kind of therapy is The Feeling Good Handbook by Dr. David Burns. But as ML has said, I think the reason it works is because while it acknowledges past issues as real, it doesn't focus on them. It focuses on changing current thought processes and behaviours.

If your H's therapist isn't doing CBT work with him, I agree it'll just be more of the same on and on. IMHO, CBT can and does work well with MB. You might see if he's willing to switch to a CBT IC for his personal issues. They deal with PTSD and anxiety issues very well.

"When people show you who they are, believe them." -- Maya Angelou