I'm on medication for OCD and panic disorder. Zoloft has helped me a lot. Wellbutrin worked for me too, but I quit it because it changed 'me' too much. (I was later told by my best friend that I acted like a spunky cheerleader... sooooooo not me.) When I was in college the OCD got out of control for me and my doctor and T advised medication. The first two weeks I was really nauseous and dizzy from it, but after that the OCD got a lot better. It was definitely easier for me to manage my compulsions, although it still took a lot of strength and therapy to. Don't confuse meds with some wonder drug though. It doesn't make it all go away, it just lessens the pain enough to be able to work on it in therapy. I'm still in a daily battle to not give in to my anxiety/compulsions. And side effects haven't been easy to deal with either. As I mentioned before there was the dizziness. Also, I experienced fairly severe muscle tremors for the first three months. Another issue thats frustrating is my libido is pretty much nill (this may not matter for her now, but as a married woman it is extremely frustrating).
As said previously CBT and ERPT are very effective and you should discuss these options with her T.

Have you seen the show Obssessed on tv. This may help you to understand what she's going through a little better and also introduce you to these types of therapy and how they work.

I hope this helps some.