21-year-old Cavallari has apparently visited Beverly Hills surgeon Dr. Frank Ryan's office to erase the "NZ" tattoo - Zano's initials - from her wrist.
"It is kind of painful," a source tells E! news, "but she wants that thing off." The treatment will take a number of visits before the ink is completely erased.
The doctor treating Cavallari is said to be the same one who had done Heidi Montag's boob and nose jobs. Both of whom are, ironically, their fellow reality TV star Lauren Conrad's enemies.