Yep. Look up Exposure Response Therapy, ERP. Stopping compulsion is important. They take it one step further and make you desensitize to the thoughts by making you say over and over, maybe I have HIV. Maybe I have HIV. After a while, it's just a thought and doesn't bug you. But to begin with, NOT doing your usual rituals is important. So, Don't ask anyone about your exposures. Don't test. Don't read the forums. Don't check your body. Don't look anything up. Etc. https://iocdf.org/about-ocd/ocd-treatment/erp/