Here is an article by Merely Me, the community leader of the Depression site who also writes on the ADHD and the Anxiety site, called, ADHD and Compulsive Picking At Skin Or Pulling Out Hair. She also has links to other information, within the article.   And, if you search hair pulling on the ADHDCentral site, you will find even more information, some by Eileen Bailey, the community Leader for that site. There are articles on the Anxiety site also, such as this one by Jerry Kennard on, Tearing Your Hair Out: The Causes and Treatment of Trichotillomania.   A search on either site will give you a wealth of information. Hope this helps you. You may also get more comments here, trying to help. We hope you'll keep writing on this, or one of the other sites.