Woolly aphid beetle?

Hello, we've had these little bugs for about two or three weeks now. They're constantly on the wall, our mattress, and our bedding. I've even developed a rash, and it's really itchy. I have a two-year-old daughter, and she itches a lot, too. We've been sleeping on the couch in the living room ever since. Do you have any suggestions on what we can do? I've even put up fly screens and stopped opening the window, but they still appear. I've also found a few in the living room. The rash is now starting on my chest. Do you have any good advice on what will really help them disappear completely?