Every bedroom in the three story house, from the upstairs to the basement, has bedbugs. There are small children, several cats, and a dog living there. What can be used to get rid of the bedbugs that will not harm the children or the animals? And do the bedbugs cause any lasting harm to the people and animals bitten by them?
Bedbugs probably do little lasting damage when one is bitten, but one does not want to spread them to friends, neighbors, schools, etc. The best thing to do is to hire an exterminator. It is very difficult to get rid of them. http://ento.psu.edu/extension/factsheets/pdf/bedBugs.pdf