I do not believe OCD goes away, but I believe we learn to function with it, over it, etc. When I was much younger (my OCD began at age 8, I am turning 23 in a week) my compulsions were to run back and forth from my bed to my door 12 times in the morning and at night. As it progressed, I needed to wash my hands 67 times a day. Rock 14 times while sitting down.

As I grew older, the compulsions did fade. But I think it was because of aging and the preventative things my parents did to keep me free from infection (my hands were washed raw. It was terrible). My compulsions are now more in the background, if that makes sense? Though it depends on the day and my anxiety level.