I have some OCD, but not your particular symptoms. What I do is talk back to my OCD. ( "You're back, you little swine.") I sometimes swear at it and call it names.
Also, I practice mindfulness and meditation to help deal with anxiety.
I heard of someone wearing an elastic band around their wrist and every time an intrusive thought came they snapped the elastic band and said "Stop!"
Hope you can find a solution. Maybe someone else on here has better advice??