I don't know anything about this in particular myself. However here's a link to a website I stumbled onto a couple of days ago while replying to another post similar to yours. I don't have any first-hand knowledge about it myself. But it appears it may be a useful resource:

https://www.skinpick.com/

Also, family therapist, Kati Morton, has a video on her YouTube channel on the subject of dermatillomania, excoriation & skin picking. Here's a link to that video:



My best wishes to you...