Online published research suggest that bed bug (including their eggs) die around 122 degree fahrenheit temperature. There are some professionals available who bring big heaters and fans and raise the temperature of your room/house to 135 degree fahrenheit. I believe that is the only known effective treatment. After the heat treatment u want to put a case (available at walmart and other stores) for mattress, pillow etc. Other treatment such as spray, other chemical works temporarily. Bed bug can survive without food for a year.....
Good luck my friend!