After treatment, prevention measures are important to ensure that a house remains bedbug-free for a long time after the infestation has been treated. After treatment, either by a pest control professional or by successful DIY effort, vigilance is the key to not getting re-infested. First, inspect your sleeping areas regularly and other possible hiding places, such as seams in furniture, baseboards, and cracks in walls. This proactive step will allow catching signs of re-infestation early to take action to avoid things getting out of hand.
Other than the routine inspections, good habits of cleaning will be very effective in minimizing the possibility of return by bedbugs. Vacuum your home frequently and pay particular attention to carpets, upholstery, and under furniture. Use a vacuum cleaner with a HEPA filter, and dispose of the vacuum bag or empty the canister outside so as not to have any bugs locked up that could re-enter your home. All bedding, linens, and clothing should be washed and dried on high heat from time to time as this not only kills all stray bugs but also becomes a preventive measure.