Inclusion Criteria:

1. men and women age 18-65;
2. current diagnosis of neurotic excoriation.

Exclusion Criteria:

1. unstable medical illness or clinically significant abnormalities on prestudy laboratory tests or physical examination;
2. history of seizures;
3. myocardial infarction within 6 months;
4. current pregnancy or lactation, or inadequate contraception in women of childbearing potential;
5. a need for medication other than Lamictal with possible psychotropic effects or unfavorable interactions with Lamictal;
6. clinically significant suicidality;
7. lifetime history of DSM-IV bipolar disorder type I, dementia, or schizophrenia or any other DSM-IV psychotic disorder;
8. current or recent (past 3 months) DSM-IV substance abuse or dependence;
9. illegal substance use within 2 weeks of study initiation;
10. initiation of psychotherapy or behavior therapy from a mental health professional within 3 months prior to study baseline;
11. previous treatment with Lamictal (lamotrigine);
12. treatment with investigational medication or depot neuroleptics within 3 months, with fluoxetine within 6 weeks, or with other psychotropics within 2 weeks prior to study baseline;
13. current treatment with an anti-epileptic medication.