The creatures don't have wings and they can't fly or jump. But their narrow body shape and ability to live for months without food make them ready stowaways and squatters. Bedbugs can easily hide in the seams and folds of luggage, bags and clothes. They also take shelter behind wallpaper and inside bedding, box springs and furniture. The ones that feed on people can crawl more than 100 feet (30 meters) in a night, but typically creep to within 8 feet (2.4 m) of the spot its human hosts sleep, according to the CDC.
But the bites will look different from person to person, and some people won’t develop any reaction whatsoever. “The same bedbug could bite two different people and one could have no reaction at all and the other can have an extreme reaction with a swollen arm or itchy rash,” says Eric Braun, a board-certified entomologist and business manager for the national pest control company Rentokil Steritech, who is based in Redding, Pennsylvania. Some people end up developing a rash that looks like eczema. (5)
Each of the following pictures of bed bug bites shows typical skin reactions to the insect's saliva. Most people are not hypersensitive to the bites and will show no reaction at all with the exception of two small dots where the bedbug punctured the skin. Other people can develop red papular eruptions (raised inflamed areas) or in severe cases, blisters.
Bed bugs usually bite people at night while they are sleeping. Hungry bed bugs may also feed during the daytime, especially if this is when the occupant normally sleeps. They feed by piercing the skin with an elongated beak through which they withdraw blood. Engorgement of the bed bug takes roughly three to 10 minutes, but because the bite is painless, the person seldom realizes they are being bitten. Bed bugs normally do not reside on people like head or body lice do; instead, immediately after feeding, bed bugs crawl to a secluded location to digest their meal. Symptoms after being bitten by bed bugs vary from person to person. Many develop an itchy red welt within a day or so of the bite. Others have little or no reaction. Sometimes the reaction is delayed days or even weeks after the actual bite occurs, which can make it difficult to determine where or when bites actually occurred. Studies conducted in bed bug-infested apartments suggest about 30 percent of people do not react even when bitten repeatedly over time, and there is still higher incidence of non-reactivity among the elderly. Unlike flea bites, which occur mainly around the lower legs and ankles, bed bugs feed on any skin exposed while sleeping (face, neck, shoulders, back, arms, legs, etc.). The welts and itching are often wrongly attributed to other causes, such as mosquitoes. For these reasons, infestations may go a long time unnoticed, and can become quite large before being detected.
Did you or someone else in your home recently come home from a trip? Bugs can stow away in clothing and in the recesses of your luggage. A good preventative measure is to check lodging you are staying in immediately after arrival. As mentioned before, signs are evident, even during the daytime, include the blood-colored excrement they leave behind.
Bedbug bites usually do not require any treatment. If you develop itching of the skin around the site of the bite, you can use an over-the-counter antihistamine pill or cream such as diphenhydramine (Benadryl). Some individuals may also experience relief from the itching by applying a hot washcloth directly to the affected area. Try to avoid scratching the skin, as this can cause skin breakdown and a subsequent secondary bacterial skin infection.
Hello all I just want to put this out there that heat is the best way to kill these little pests. I work for a company that uses heat to do structural pasteurization, in other words we heat the entire house up to 140°+ (which is higher than the the thermal kill point for bedbugs) for an hour or more (though they can only withstand that heat for less than 15 min) This has been the ONLY way to kill them with a 100% success rate since they are becoming resistant to chemicals and DDT is illegal. Some things work for some infestations but not for all, there are a lot of good ideas on here :-)
The bites of bedbugs can be difficult to identify, and not all red bites are due to bedbugs. Mosquitos, fleas, biting gnats, and mites can all bite humans. Collecting and identifying the bugs can help establish the diagnosis. They can often be found beneath or on the seams of mattresses. Their bloodstains may be visible even in the absence of bedbugs. You should also look into nooks and crannies of furniture, walls, and floors if you're suspicious that bedbugs may be present.
The significant resurgence of bedbugs in the past decade has been attributed to pesticide resistance, more frequent travel, lack of public awareness, and inadequate pest control programs. Bedbugs are obligate blood parasites (insect family Cimicidae). They can withstand a large range of temperatures but are attracted to warmth and carbon dioxide. They typically feed just before dawn. Cutaneous reactions to bedbug bites can include macules, papules, wheals, vesicles, bullae, and nodules. Bites may be confused with other skin conditions. Bedbug bite reactions are typically self-limited and resolve within one to two weeks without treatment. Bedbug infestation may cause significant psychological distress. The diagnosis of a bedbug infestation is based on history, appearance of bites, and inspection of sleeping quarters. Although there is no evidence that bedbugs transmit disease, systemic reactions may include asthma, angioedema, generalized urticaria, iron deficiency anemia, and, rarely, anaphylaxis. An integrated pest management strategy should be employed to eliminate infestation. Tactics include vacuuming, heat or cold treatment, trapping devices, and pesticides.
Until fairly recently, most people (and even pest control professionals) had never seen a bed bug. Bed bug infestations actually used to be very common in the United States before World War II. But with improvements in hygiene, and especially the widespread use of DDT during the 1940s and ‘50s, the bed bugs all but vanished. The pests persisted, however, in some areas of the world including parts of Africa, Asia, and Eastern Europe. Over roughly the past decade, bed bugs have made a dramatic comeback in the U.S.― they’re appearing increasingly in homes, apartments, hotels, health care facilities, dormitories, shelters, schools and public transportation. Other places where bed bugs sometimes occur include movie theaters, laundries, rental furniture, and office buildings. Immigration and international travel have contributed to the resurgence of bed bugs in the U.S. Changes in modern pest control practice, less effective insecticides ― and a decrease in societal vigilance ― are other factors suspected for the recurrence.
Vigilant travelers may also want to elevate suitcases off the floor on a stand, tabletop or other hard surface rather than storing them on the floor or another bed. Hyper-vigilant travelers may further opt to keep belongings in sealed plastic pouches and their suitcase in a zippered tote — however each traveler must decide how cautious they wish to be.
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.