Wow, I never realised that skin picking was so common in OCD! I pick at the skin on my fingers, hangnails, and I pick at my face. It's very frustrating because any blemishes on my face will last much longer since I'm always picking at them. I do this all day, even at school, and I'm POSITIVE that my classmates see me do it and get grossed out, (I also eat the skin that I pick off) and it creates a lot of anxiety for me.