If possible get your treatment from a local outlet like Home Depot, a hardware store or an agricultural/farm supply store. If you can afford it get one of those steam mops like Shark has. It comes with a unit designed for hand steam treatments of the bed and the hot steam will kill the bugs. You will also need it if you have to treat carpeting. Professionals use a combination of treatments and you will too in order to be successful. Good luck!
The size of bed bug bites varies with a number of different factors. Bed bugs inject an anti-coagulant along with their saliva when they pierce the skin to take a blood meal. This anti-coagulant is mostly responsible for how a person reacts to the bite and determines the size of the bug’s bite. Since people will have various sensitivities to the bed bug’s bite, the size of the bite will vary, as well. Another factor that influences the size of a bed bug reaction is the number of times a person is bitten. Bite reactions of people bitten many times are also variable, and their response may be either more or less intense as the number of bites increases.