The danger is when you get into the "zone" as I call it where you just go into a frenzy and pick at every little bump on your face. I had managed to not pick for several weeks by forcing myself to stop and think how in a few minutes i could destroy my face. I remembered the times I had picked and then immediately regretted it wishing i could go back in time just by 2 minutes.
I think a big factor is there are so few people we can go to about this. I'm trying to find support groups for OCD and dermatillomania near where I live, maybe you could do the same?