gtripoli is right. Another thing that actually just helped me as a matter of fact is just accepting the thoughts. You have to think of it as a fear basically and your mind senses it as a danger which creates anxiety. In reality we all know you would never act on your thoughts and it can't harm you physically, but your mind still labels it as a fear basically. I bet your emotions and anxiety is all out of whack right now. You need emotional balance. Whenever the thought comes into your head, just accept the thought like any other thought and then refocus you attention on something else. I know it's harder said than done, trust me. Right now your body is basically in shock and in a very fearful state probably 24/7, especially if it has been going on for a long time. You can heal yourself, trust me, I know you can. You can't fix it with the same mindset that you started it with. Also, trying to "fight it" just makes it worse as mentioned numerous times. The only way to truly get rid of it is by faith, courage, and not underestimating yourself. Don't hold yourself back. You can recover. Stop trying to defeat it and just let it be. Once your mind realizes it's not a fear anymore you body will go through a very odd feeling/change. Why? Because it will be something that your body isn't used to. When the thought enters your head, say these words... "I accept the thought". That's all it is, a thought. You have to reprogram your mind basically and balance your emotions. The reason people have fear and anxiety in the first place is because they focus on the anxiety too much and they let the fear overwhelm them. Trust me, I know this is a hard task but if you view it as such then your only doing more harm. You have to elevate your mind to something entirely new that your body and mind isn't used to. Don't view it as a hard task either, instead view it as "I have the potential to do this, this is possible." It is working with me, so I know it is possible. Don't focus on the anxiety, fear, or how horrible the thought is. When it enters your mind, don't think about it, don't fight it, don't pay any attention to it at all. Try to think of your mind as a balloon that is empty with nothing but air. You give the thought and anxiety rise by thinking about it. When it enters your head just accept it but at the same time let it pass by like all other thoughts do. OCD is an anxiety and fear as much as it is a thought. They are directly linked actually. The way to get rid of it is to not pay any attention to it. Literally. You have to release the stress you are under as well. You will feel your body go through some rather intense emotional healing as well as allowing the anxiety to get less and less. I have faith in you, don't give up. At night time when you go to bed is a good time to apply these methods.

Try these steps: I would suggest doing this alone preferably at bed time. Your body will feel different like I said because you will not be used to it at first, but don't get discouraged. You are doing yourself, your body, and your mind nothing but good if you can focus your attention entirely on something else for any period of time. Think of it as a game to see how long you can go without thinking about the thought at all or trying to battle it in any way shape or form. Like I said, you have to accept the thought and let it pass everytime it enters your head. Don't battle it at all or even think anything about it. Instead, just accept it and let it pass. You are in a fearful state and your mind thinks you are in danger.

1.) First of all, you have to stop underestimating yourself. Human beings are incredible, beautiful, and capable beyond measure. Have courage, because courage battles fear head on. Never underestimate your capability.
2.) Relax
3.) Don't focus on your emotions, anxiety, fear, or how horrible the thought is or what it is doing to you. Instead just accept the thought as a thought, because that's all it is.
4.) Don't be afraid of change.
5.) No matter how horrible you think the thought is you have to accept it. Just because you accept it doesn't mean you will act on it and it doesn't mean that's who you really are. You can't accept it by thinking it is horrible either. Accept it as literally nothing but a thought that just passes through your head.

Your body will probably start to go into sort of a "shocked" state if you truly do this correctly because your not used to it. When someone is in a fearful state for sooooo long, it takes a while to release all of the negative anxiety filled emotional stress and energy. It will start to "leave" your body and you need to balance your emotions to get out of your fearful state of mind. You can do this. I have faith in you.