Our expert says:
Actually this isnt an awfully uncommon bad habit, and can usually be effectively treated by a psychologist --- rather like nail-biting ( so long as it's their own nails they're biting !) So her best bet would be to see a shrink.
On her own, somethings which can help are (a) find something else to do with her wandering hands, like worry beads or something else, inocent, to fiddle with ; and (b) wear gloves or mittens which make it hard to do, and remind her when she starts unthinkingly to do it.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.