It may help to write down your obsessive thoughts rather than try to suppress them, in order to get more control of them. It has been shown that when you try to push a thought away, the opposite often happens-you bring it to mind. On the other hand, try to resist carrying out compulsive behaviour or thinking, because each time you give in to it, your belief that it can stop bad things happening gets stronger. Don't use recreational drugs or alcohol to control your feelings as this can have a negative impact on your health and wellbeing. You may find doing exercise or relaxing helpful.
Attribution: BUPA