My wife has contamination OCD and I can’t continue to live with her

My wife has had contamination ocd that’s got progressively worse over the past few years and I can’t stand it anymore. I can’t live with the constant hand washing and anxiety. Our house is a disaster because I can’t clean anything because I don’t clean it right or if I touch anything then I’m contaminated or I’ll contaminate other things in the house. Because of this everything is off limits or a land mine everything is cluttered and dirty. My house is in a state where I’d be ashamed if anyone knew how I actually lived. I haven’t slept in my bed for six months because a piece of her dirty laundry touched one of the corners and now she is too overwhelmed to do the sheets. And of course I can’t do the laundry that would contaminate the kids. The only room in our house that is useable is the downstairs living room. I can’t live like this I’m going insane.