Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Bed bugs are small, flat insects that feed on our blood, typically at night, while we are sleeping. Adult bed bugs are about 1/4 of an inch long, have flat, rusty-red-colored oval bodies, and look like an apple seed. They feed for about 3-10 minutes and their bodies swell and become bright red. During the bed bug life cycle, a female can lay 200-400 eggs depending on food supply and temperature. Bed bugs don't fly, but can quickly walk across floors, walls, and other surfaces.
People don't often consider bed bugs until they've left their mark. The appearance of flat, red welts in zigzag lines or small clusters is a key sign of bed bugs on humans. Bed bugs can also leave their bites in straight rows and, while they don't spread diseases to humans, their bites are quite irritating and scratching them can lead to bleeding and infection.
Great read and very helpful info. However, when you describe how to use essential oil sprays for bed bug treatment, it would be most helpful if you included the amount of water used to mix with the oils. Simply stating to use “a small spray bottle filled with water” isn’t a very good description. A quick search for “small spray bottle” will get results for a wide range from 2-ml to 16-ounce bottles, all classified as small. This makes for a rather potent mixture to an extremely weak mixture.
I have had one bite in threes which cleared up in days and an occasional acne looking sore on my but and arm. I have noted in my car lots of little bites but no marks. My son does not appear to have bites. once he had one on his back that cleared quickly. I really needs some help here as I am getting obsessive with cleaning and making my child change and bath. I have checked my cat for flees and bought her a flee collar as I am thinking the stinging bites I get in the day may be from flees but no itch or real marks. Help please.
People don't often consider bed bugs until they've left their mark. The appearance of flat, red welts in zigzag lines or small clusters is a key sign of bed bugs on humans. Bed bugs can also leave their bites in straight rows and, while they don't spread diseases to humans, their bites are quite irritating and scratching them can lead to bleeding and infection. 

Bedbugs are a species of insect known as cimex lectularius (literallycimex is Latin for bug and lactularius is Latin for bed). There is a second common species of bedbugs known as cimex hemiptera. These are known as the tropical bedbugs, staying within 30 degrees of the equator. There are published reports, many without supporting evidence, that each of the common bedbug species has chemically different saliva. Some researchers, however, have found no difference in the reactions caused by each species.
It often seems that bed bugs arise from nowhere. The bugs are efficient hitchhikers and are usually transported into dwellings on luggage, clothing, beds, furniture, and other items. This is a particular risk for hotels and apartments, where turnover of occupants is constant. Bed bugs are small and agile, escaping detection after crawling into suitcases, backpacks and belongings. Acquiring secondhand beds, couches and furniture is another way that the bugs are transported into buildings. Bed bugs also can be carried in on one’s clothing, shoes or wheelchair. Once bed bugs are introduced, they can crawl from room to room or floor to floor. They can also be transported throughout buildings on people and their belongings. 

Considering how time-consuming and costly it can be to eradicate bed bugs, it’s prudent to take precautions and avoid infestations in the first place. Householders should be vigilant when acquiring used furnishings, especially beds and couches. Discarded items should be avoided, and secondhand articles should be examined closely before being brought into the home. Look carefully in the folds and seams of furniture for signs of bed bugs (see the previous section entitled "Description and Habits" for more details). There is no reason to stop shopping in consignment stores, yard sales, etc., but it would be prudent to run clothing and fabric items through the washer or dryer before storing them in the home. The risk of acquiring bed bugs from items purchased in antique stores would generally be insignificant.      
Bedbug bites may go unnoticed or be mistaken for flea or mosquito bites or other types of rash or skin conditions, since the signs of bedbug bites are difficult to distinguish from other bites or skin conditions. Bedbugs also have glands whose secretions may leave musty odors, and they also may leave dark fecal spots on bed sheets and around places where they hide (in crevices or protected areas around the bed or anywhere in the room).
Pay attention to when the bites occur. Consider, for example, if you notice the bites after waking up when previously you hadn't noticed them. However, this can also be difficult to determine because each person's reaction time can vary significantly. Symptoms that result from the bite can manifest at any point from a couple of hours to more than a week after the bite occurred.
Low toxicity contact sprays like SteriFab™ or Bedlam® are likely to kill bed bugs only on contact. Alcohol- and soap-based sprays, are only partly effective. All of these products, once dry, are likely to provide no further control. Eggs will not be killed by alcohol-based sprays, so repeat treatments are usually needed. Be careful when using sprays containing alcohol because they may be flammable.
Bedbugs live in any articles of furniture, clothing, or bedding, so they or their eggs may be present in used furniture or clothing. They spread by crawling and may contaminate multiple rooms in a home or even multiple dwellings in apartment buildings. They may also hide in boxes, suitcases, or other items that are moved from residence to residence or from a hotel to home. Bedbugs can live on clothing from home infestations and may be spread by a person unknowingly wearing infested clothing.
The Diatomaceous Earth seems to kill them and centipedes. Didn’t even know I had those til I put powder down to prevent bed bugs and found one curled up dead. It dries them out and kills them. Works great! I’ve heard boric acid doesn’t work on bed bugs but I do know it works wonders on killing roaches. My sister had them in an apartment & boric acid wiped them out!

Reactions to bed bug bites vary among individuals. Many persons show no signs of bites. Others don’t realize they’ve been bitten until redness and swelling appear around the bite, sometimes with intense itching. Some exhibit inflamed swollen spots that may occur in linear series or have a rash-like appearance. Such bite marks, when they appear, may not show for several days after the person is bitten.
Bed bugs like to travel and are good hitchhikers. They will hide in suitcases, boxes and shoes to be near a food supply. They are elusive, nocturnal creatures. They can hide behind baseboards and in cracks, crevices, and folded areas of beds, bedding and adjacent furniture, especially mattresses and box springs. Bed bugs can also hide in electrical switchplates, picture frames, wallpaper and nearly anywhere inside a home, car, bus, or other shelter. Bed bugs usually come out at night for a blood meal. However, they are opportunistic insects and can take a blood meal during the day, especially in heavily-infested areas. Bed bugs usually require 5-10 minutes to engorge with blood. After feeding, they move to secluded places and hide for 5-10 days. During this time in the bed bug life cycle, they do not feed but instead digest their meal, mate, and lay eggs.
First off you should ALWAYS go to pest control if you think you have bedbugs! You shouldn’t try and get rid of them yourself, 99% of the time it does not work. Plus even if you removed infected areas and wash them it wouldn’t kill the eggs. Plus bedbugs are very easy to get but very hard to get rid of. So you should never do it yourself it won’t work!
Just to be clear, you can kill bed bugs with heat. It’s just a matter of using the right equipment. A high-pressure steamer is the weapon of choice for killing bed bugs on contact, since their steam can surpass 200 degrees, and can penetrate deep into soft materials like mattresses and upholstered furniture. You can also use a steamer on more than just clothes or other fabrics; a steamer can kill bed bugs hiding along baseboards, floorboards, window sills, door frames, and the edges of the carpet.

Some pest control firms also employ commercial steamers or spot-freezing equipment to treat areas where bed bugs are found or suspected. Used correctly, they kill bugs and eggs on contact. Neither method, however, affords residual protection against bed bugs which may have been missed. Steaming and spot-freezing equipment also have limited ability to penetrate fabric, wood, and other materials where bed bugs often reside. 
Human infestation with bedbugs, lice, and mites are common causes of dermatologic symptoms. Although these organisms thrive in conditions of overcrowding and decreased sanitation, Americans of all socioeconomic backgrounds may be at risk for infestation. Clinicians must maintain high suspicion in the appropriate set of clinical circumstances to identify and treat infestations, as they can cause substantial dermatologic and psychological discomfort for patients. Images courtesy of the US Centers for Disease Control and Prevention.
First up are the contact sprays, like STERI-FAB and JT Eaton Kills Bed Bugs. These will kill quickly, but evaporate shortly after, leaving no long-lasting protection. Spray along baseboards, below drawers and on drawer slides, behind cabinets, and behind night stands. Follow up with a residual spray, such as Bedlam Plus and JT Eaton Kills Bed Bugs Plus. Residual sprays will offer long-lasting protection against bed bugs and hatchlings. Bedlam Plus is ideal for cracks and crevices throughout the room, while JT Eaton Plus can be used below the cushions and bases of sofas, chairs, edges of carpets and other fabric items.
Research has shown that some bed bugs are resistant to the pyrethroid pesticides that have been most commonly used in recent years by pest management professionals. Likewise, pyrethroids such as deltamethrin and permethrin have been among the active ingredients most commonly available in pesticides at retail stores. The ongoing use of pyrethroids has undoubtedly contributed to the resistance we see today in some bed bug populations.
Check the mattress throughly, paying close attention to seams and tufts along the edges. Flip the mattress over and inspect the bottom carefully as well. Pay particular attention to any rips in the fabric. View the fabric on the bottom of the box spring and shine a flash light to verify that bed bugs have not penetrated the interior of the box spring.
you probably ALREADY HAVE THEM..you cant let people that you know have an infestation of blood sucking parasites in your HOUSE..im sure you already have them but a hot dryer does kill them yes but thats not going to protect you these are very easily spread they fall off their bodies or hair right into your house & if you have children with bedbugs in your home you most likely already have them..sometimes people have no idea they even have them the bites dont affect some people..other people after about 3 week get an allergy & thats why the bites swell like hives..they became allergic & that can be a dangerous allergic reaction
I'm a former scientist, using words and an audio recorder as my new research tools to untangle the health and food issues that matter most to consumers. I live in Brooklyn, N.Y., where I cook as much as possible. You can find me in the grocery aisle scrutinizing the fine print of every food item I put into my cart. Follow me on Twitter @juliacalderone.
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