If I understand your question correctly, I believe you are asking what are the behaviors that you avoid to help with OCD (obsessive compulsive disorder). The specific behavioral treatment employed to address OCD is a treatment called exposure response prevention (ERP). Exposure response prevention is a behavioral treatment where the person with OCD is not able to resort to compensatory compulsive behaviors in order to reduce the anxiety from the obsessions. The problem with OCD is that the compulsions, even though it reduces the anxiety over the short term, over the long term, the compulsions maintain the negative, vicious cycle of OCD. So in ERP, the person is not able to use compulsions, and instead focuses on other relaxation techniques in order to reduce the anxiety more effectively.
The following video explains how OCD develops, and how it is treated: