Well, yes, you should stay on your medication since you are having some sort of positive effect. Do you see a psychiatrist to manage your medication and do you do talk therapy? I would talk to the prescribing physician about what else can be used to help with the OCD medically speaking. Something added on, a higher dose of Lexapro? Also, the other things you do for mental health issues like OCD are sorted out with a therapist. Talk therapy is very beneficial and is an important part of overcoming your ocd. Are you active in that? But going backwards to nothing is not the way to go. Backward slides are not good. good luck