My daughter somehow got bedbugs in her house. Wow!! It was amazing how many times the exterminator had to go to her house. My daughter and her husband had to vacuum everything, take the bed apart and vacuum every part every day. My daughter was allergic to their bites and swelled up every place they bit her. It was terrible.
We saw on the web that Cedarcide would kill bedbugs. She ordered some and sprayed that stuff all around. She said she had every window open and every fan on.
I really try to be careful about anything I bring into the house. I pray that I never get them. Smells bother me and sometimes I get migraines if I am exposed.
Teachers can tell you that if any student gets headlice, it can spread to the whole class. Their coats/hats etc. are all hung on one wall - the lice hop from one coat to another in order to find the warmest spot. They have to put every child's coat/hat etc. in a garbage bag and tie it us so bubs can't get in or out. The rest of us seem to itch and scratch just thinking about it.