Despite using all these spray, you must keep in mind that bed bugs are highly sticky
creatures and they often grow immunity to all sort of poisons and sprays. Some of the pesticides used earlier no longer work over the bed bugs after some time. Therefore, new ones are discovered so that the method of killing bed bugs could be changed every time and they could not grow immune to poisons. Typically, people resort to using sprays and then taking preemptive measures to prevent their growth. This is the best way to treat a house from bed bugs. Even professional exterminators also use both type of bed bug sprays to kill and prevent growth of bed bugs.