I was diagnosed with OCD about a year ago but it has been the worst right now. About a month ago, I started becoming very fearful and paranoid about semen being everywhere, on my things at home, on light switches, doorknobs, everything. This is because when I masturbated, I wasn't sure if I washed my hands afterward, before touching a lightswitch. I also think that the semen could have dripped on the floor or an object. Since I think I touched the lightswitch before washing the semen off my hands, I think that the semen has spread to the lightswitch, which I then touched after washing and then touched some of my books, video games, cell phone, door knob, etc. Now, I feel that everything of mine is contaminated with semen because the semen was transfered from one object to another by me touching it. This bothers me greatly and I really need help because I don't know how to make it stop bothering me. I was wiping my objects of with antibacterial wipes but my doctor said not to wipe. I really want to wipe but there is so much that I feel is contaminated that it would be impossible to wipe it all. Help me please. I don't feel comfortable thinking I have semen on my things.