When anti-anxiety medication is not enough to control anxiety

My daughter suffers from a very very severe case of anxiety disorder. She has lived a life controlled by worry and depression. At age 34, Beth is finally seeing the light. She is successfully using a cocktail of anti-anxiety medications which have definitely decreased her anxiety. But the medication has not completed the task of controlling Beth’s anxiety sufficiently. She continues to be functioning in a limited capacity both in her personal and business life.