Sure. There's a whole chapter in my book that makes it pretty easy, so if you want to know more, I can lend you that later.
Essentially, you have the person do the exact opposite of what they already have been doing. It's very hard to convince them to do it. That's the hardest part. What you do is have them tell their worst trauma story in every detail, using all the senses: what they saw, what they smelled, what they felt, what they heard. It's not so much the fact but rather the impact.
Once we have a written story in great detail, they either tape it or we read it in one session of therapy, and after that they read it every day. There are rules. They have to read it for 45 minutes, and they have to read it for five days a week. If they have to read it more than once, that's okay. That's how you see that graph go down.
What I can say is that everybody who has done it has graphs just like the ones I've shown. However, the tricky thing is that there's research that has just came out that says that of Afghanistan and Iraq veterans, 70% drop out of this kind of therapy because it's so difficult. You're asking them to go back and do the opposite of what's natural: face the worst thing. You need to have a really good explanation and a good relationship with them and to really work on that hope all along, if you want them to continue to do this.