I have just had a MAJOR 0CD relapse myself actually. But anyway in relation to your thread, let me paraphrase how I felt a few years ago when my 0CD took on the "P" variant:
I went through a very existential crisis when my P0CD started that caused me to really consider what I found attractive. Like what if a 12 year old looks like a 22 year old? Or vice versa? What am I actually attracted to? Could I be aroused by somebody who is 12 for instance? What if a woman was 22 but her face looked 12? Would that make me a paedophile?
What if a 16 year old looked like a 12 year old? When those girls walked pasted was I turned on? If most of them were teenagers that would be okay, but what if a couple of them were 11 or 12!? Then what? Which ones would have been the cause of me getting turned on? What if I was lying to myself about what really happened?
Etc, etc, ad infinitum. All of these paranoid scenarios running through my head over and over and over. The anxiety levels were off the scale, back then I didn't even know it was 0CD, I felt like I could finally understand why people considered suicide an option when your own head can create such an utter hell for you.
Really what you need to do first of all is stop panicking, then you need to gradually reduce your levels of "giving a ###$"

Resist the compulsions; easier said than done I know, I often find that a compulsion will burn itself out after 3 or 4 days, but resisting it in the first place is definitely the better thing to do.
And distance yourself from the intrusive thoughts, when I thought pops up throw an "that's 0CD" sticker on it (or some other catchphrase of your choice) and move on. That will distance yourself from the thoughts and reduce the anxiety and guilt you feel from having them. The last few months before my latest incident I was feeling so much better about everything and my intrusive thoughts had really taken a back seat.
Like Otter said, don't try to think of it in terms of something being reversed or cured, just focus on living your life and don't dwell on things that have happened, instead, next time you feel a classic "0CD scenario" is going to crop up, practice "nipping it in the bud" until most of the time you will be able to squash it before it becomes a full blown "incident" (like I have just had, even as an experienced veteran of fighting 0CD).
Hope that helps and be sure to do your own research such as Googling "0CD coping strategies" or other such things.