C.B.
I don't have a child with OCD, or atleast right now I don't think so, but I am married to a man that suffers from OCD. Like the other post says, my husband also has a horrible problem with nail bitting. This is from his being OCD. He keeps chewing on them because he 'can't ever get them even'. He focuses on certain topics for a LONG time...like lately he has been on energy saving light bulbs, and I swear the man has been on the internet for HOURS over the past couple of days research them and EVERYTHING about them. It's kinda funny. So, yeah the door shutting thing could be part of an OCD thing, but my husband has never taken medicine. He went through a little bit of counseling as a small child, but it never helped. I guess it depends on just how bad he suffers from the OCD. Maybe the combination of the OCD along with the delays in development make it worse...I'm not quite sure. I will say that I know several people that live with OCD without therapy or drugs. I would say listen to what the therapist and doctor say, but use your mom judgement. You will know what is best for your child.
Good Luck and God Bless
C.