I actually went to an anxiety/ocd treatment clinic last year for a month and did exposure therapy and have seen therapists for it too. The exposure therapy does help reduce it by 50% or so if you make sure not to give in to the urge to move something or arrange something, etc. Once I start it's hard for me to stop. The hard thing is to rest with the anxiety and resist giving in. I know it is caused by something physical because it started after I have Epstein Barr Virus and gets worse when I am sick or under stress or before my period. I was seeing a psychiatrist for it a while back and he put me on zoloft and it totally brought me out of my head and was a lifesaver for me. I honestly would not have been able to work or finish college without it. The mental OCD has been bad for me these days. I have weird dark thoughts. I am also much sicker now than when I was on the zoloft so I am not sure if it will have the same effect. I have been trying to address my physical problems hoping the OCD will go away and have spent thousands of dollars on doctors to treat my thyroid, adrenals, candida, and parasites and nothing makes the OCD go away permenently. I don't know what to do at this point but it is hard enough living with physical illness...the mental illness on top of that is just too much.