Using chemical agents is an effective and fast-working pest eradication method; however, it does have a few crucial downsides. First, you will need to apply a combination of chemicals – contact insecticides, residual chemicals with a delayed effect, and specialized dust that offers protection against pests, hiding in cracks and gaps around the house. It is a messy and time-taking process. Besides, most bed bug chemicals are toxic and have to be used cautiously in households with kids and pets.