dermatophagia?

I was just recently informed that eating the skin below your nails is not normal, I didn’t understand it was a result of my ocd (I was diagnosed around 2 years ago.) But I can’t stop looking at pictures. When my hands get wet the scaring is much more evident around the nails and I feel like a freak, I don’t think it’s something I need to be worried about. I just can’t stop thinking about it when my hands get wet because of it. I also learned that biting the skin off your lip isn’t subjectively “normal” this is just more of a rant but I feel it makes me feel better if there’s a new layer of skin on the lips. It sounds stupid but I’m curious to hear if anyone else has struggled with this and what to do to prevent further biting.