What should you do? Depends on your living arrangements. If you are by yourself you have lots of options. Hire a couple of cleaning people to come in an wash down every room or do it yourself. Vacuum all carpeting every day and then empty the bag outside. I think the vacuuming did it for me. I also did a good deal of mopping. It depends how much of a big deal you want to make. If have a SO who might get suspicious then lay the groundwork with a good story and then get to work. Just don't start cleaning as if it's some part of a New Years resolution. If you don't have to worry about the SO then hit it hard because these critters multiply. Also, there is a Phisohex type of a liquid soap at the pharmacy you can buy. I used a few bottles as shampoo and body wash. Talk to the pharmacist. Tell him you have critters - fleas, scabbies, lice etc and he'll know. Also they do get into your hair. I could feel them crawling around. I was worried they were going to build a new Shanghai up there. As I mentioned, it was misery and I didn't have a major case. Letting it go can't be good.