I assume by hocd, you mean homosexual OCD? I have not been through this personally, but I have been through harm OCD - intrusive thoughts about killing others. I will share what worked with me - doing exposure therapy with my therapist. We would meditate in his office and I was to let all my thoughts flow by like a river, not reacting to them, just noticing them and allowing them to go by.

You see, when we try to push unwanted thoughts away, they will come back stronger. If I told you to NOT think about PINK ELEPHANTS, well there's a decent chance you're thinking of pink elephants. It's a silly example but it's true. As we allow ourselves to experience these intrusive thoughts and how they make us feel mentally and physically, these thoughts will lose their strength. It is very difficult to sit with these horrifying/embarrassing thoughts, but soon the anxiety surrounding them goes away.