Unconscious Self-Injury (Possible Trigger)

Okay, so the title sounds weird, so let me explain...

The palms of my hands itch. It's like the very center is dry and flaky and no amount of lotion will soften it. To those who know about Reiki, it would be that part of the hands... But they itch like mad, so I scratch... And when it feels better, I stop. Except the moment I stop, it still itches. So, the cycle repeats until I inadvertently draw blood and realize it now hurts, because it's bleeding...

So, it isn't to feel, as cutting may be. I used to cut, but finally stopped about 10 years ago. I don't want this to be my regression back into self mutilation. Yet, I wonder of I am the only one that experiences things like this? Does anyone have any tips to help distract me from itching and subsequently cutting through itching? I've already cut my nails back so I don't dig into my skin... But it seems like an automatic response to the itch as opposed to an emotional trigger.

Thanks.