I don't know if hypnotherapy works in this application, but surely a counselor would know. I think going and talking it over with a counselor would be a good start.
live, perhaps you would be interested in this [URL="http://www.medicalnewstoday.com/articles/111398.php"]article[/URL] about a new US website that offers free self-help resources for sex addiction called Recovery Nation. You might find something helpful there.