I am a pest control tech, & they are extremely difficult to eradicate. What I do is inject Drionne dust in all the outlets, then flood the baseboard areas,doorframes,picture frames,drawers,bedframes,etc with Demand CS. Unfortunately,these chemicals are not readily available to the general public. Throw away all matresses,wash clothes & bedding with hot water & bleach, then dry on hot setting. Sometimes it takes up to 5 treatments at $300/treatment. NOT CHEAP! To prevent them--be careful with visiting service personell or visitors from 3rd world countries' luggage-- Avoid checking baggage & try to only take carry on luggage if you go on a flight;especially to 3rd world nations. There has been a resurgance in this pest of late--once thought to be almost eradicated. Look for bloodstains on the walls, & droppings where the wall meets the ceiling. I know it sounds funny, but after a bedbug or flea job, I get undressed down to my skivvies on the side of my house, & throw all my clothes in bleach solution before I even enter the garage. Not Fun!!