Treatment options

My husband is now on the maximum dose of his various medications. He has been working a psychologist and psychiatrist for a number of years. In terms of his therapy, he has made some progress, but has reached a stalemate, which has coincided with a significant downward drop in his mood and other concerning behaviour. Although he is safe, I have been very worried, This week he finally got the results of his eeg, which shows that the "absences" and twitches/jerks are not epilepsy related (good news), but are instead related to his ptsd and side effects of his medication. His behaviour was picked up at work, and he was referred to their psychologist, which we were both very negative about. But it has got him thinking about other treatment options. He gave the new psych permission to speak with his psychiatrist, who has also been very concerned, as hubby has been very unstable. New psychologist suggested exposure therapy. Psychiatrist agrees it is a good option, but says hubby is simply too unstable to cope. As dh is no longer Responding to the meds, and as there are no other medications left to try (they have tried a variety over time), the psychiatrist says that his next option is ect (shock therapy), and then only would he suggest hubby try the exposure therapy. Has anyone had any experience with either of these approaches? Obviously I am not asking for medical opinions, just how you and your loved one coped with it, side effects you noted, and the effect on your relationship. Any feedback would be much appreciated.