Hi Brit Girl,
I tried teasel this past spring. It is a powerful plant and remedy. Many people have had good results with it. However, there are those like me (very sensitive) that it was just too much for no matter how we spaced out the doses. It is used widely by many ND's and I would highly recommend that if you decided to try it, that you do it with a practitioner who can monitor your progression on it. Good Luck!