Mind Compulsion is an ability of immortals, Original vampires, vampires and hybrids to control the mind of another simply through eye contact. Witches and sirens can also use this power though spells and physical touch, respectively, to facilitate a similar action.

Does compulsion go away?

Obsessive-compulsive disorder (OCD) involves persistent, unwanted obsessions and compulsions. ... But this usually only provides short-term relief and doesn't make the obsession go away. Obsessions and compulsions can become a cycle that's difficult to stop.

Why can't Jo be compelled?

Later at the hospital she tells Alaric that she thinks they were meant to meet. Alaric compels her to not to kiss him because the evening was a disaster, he is an alcoholic, and boring. Yet she kisses him for the first time; this proved that Jo can't be compelled.