I am suffering OCD various horrible thoughts wil bother me through the day. Today it's the towel we use when having sex which will get semen on it. I have rinsed this towel and washed this towel three times on a coll 30 degree wash though as I know heat sets protein stains. Anyway should I still be worrying about it, it's out on my washing line just now and I keep thinking it has contaminated the other laundry? Any please advise what do you think it's been washed throughly so safe?