Melanie GriffithMelanie Griffith entered rehab for the third time last August, and the Oscar-nominated actress has found new strength in her ongoing struggle to stay sober. "Addiction's a tough enemy to defeat," Griffith tells ¡Hola! magazine (via PEOPLE). "I think of it as a monster. If I feed it, it will always want more and more, so now I'm letting it starve to death in a corner. But it's always there."