Maybe you know comedian Howie Mandel from his hosting of the hit NBCgame show " Deal or No Deal ," or his NBC reality show " Howie Do It ."Maybe you're a fan of his stand-up routines or his stint as Dr. Wayne Fiscus on the1980s drama " St. Elsewhere ." And maybe you were listening to HowardStern's radio show in the late '90s when millions of listeners learnedof Mandel's battle with OCD ...