If you receive an email from a spam source containing lewd pictures, disturbing videos, strange ideas, distressing personal questions, accusations and doubts, will you look at the pictures, play the videos, test the ideas, answer the questions, refute the accusations and entertain the doubts? Of course not. You will delete the email even without opening it. If the SAME content is generated by OCD in the mind, you waste valuable time and energy on it. The proper thing to do would be to discard the content from the mind without a thought. If it is hard to discard a thought mentally, discard it physically by writing it on a piece of paper, crumpling the paper and throwing it into a trash can.
TREAT OCD AS A MENTAL SPAMMER.