Meditation, like exercise, is an excellent, if long term, escape from obsessive tendencies.

Meditation will let you observe your mind, enable you to be aware of telltale feelings proceeding obsessions, and let you detachedly observe the obsession rise and fall, without feeling the need to act on it.

Reaching such a point is not easy, but it is made easier with good advice. We recommend CalmYourMind.org as a good starting point.