Prior to World War II, infestations of bedbugs were common; however, after the widespread introduction of the use of the insecticide DDT in the mid-20th century, bedbug infestations became much less common. The recent resurgence in infestations of bedbugs worldwide is thought to be related to several different factors, including the increase in international travel, dense urban living conditions, insecticide resistance, and new, ineffective pest control measures.

Another solution you hear about is vacuuming. You can vacuum up a lot of insects, but eggs are harder to get, and vacuuming won't in and of itself kill bed bugs. Indeed, vacuuming can end up spreading bed bugs to other rooms—when emptying the canister, for example. Pest control operators who use vacuums take measures to prevent bed bugs from escaping when the vacuum is emptied.
Bed bugs are a growing problem in schools and daycares. Typically they are introduced by students or staff living with an infestation at home. Pinpointing where the bugs exist can be challenging in such environments since there are no beds or sleeping areas for the insects to congregate. (Similar challenges occur when bed bugs are found in offices, libraries and retail stores.) Usually only small numbers of bed bugs are spotted, often on a student’s clothing, backpack, chair or desk. While this does not necessarily confirm that the child’s residence also has bed bugs, the parents should be notified that the home should be inspected, preferably by a professional. Teachers, nurses, and staff should be educated about the bugs and what they look like. Bed bugs should also be considered if a student frequently has reddened itchy welts --but keep in mind such reactions can be for reasons other than bed bugs. 
Bed bugs have flat oval bodies, six legs, are reddish-brown in color and are similar in size to a dog tick - many have described the adults as resembling a flat apple seed. Adult bed bugs are approximately 1/4 inch long, while nymphs (juveniles) may be as small 1/16 of an inch. With feeding, they enlarge or engorge with blood. The adults turn from a brownish to reddish color, while the translucent nymphs may become bright red during the feeding process. 
I recently flew on Airtran Airways, First trip I went well. flying back I had a 30 minute layover in ATL (not enough time to sit down). By the time I got home I was covered in bites from the back of my thighs to my neck. I counted over 100 bites! We have got a serious problem here. these bugs are on planes. I knew nothing about these bugs. Thank you for your stories and remedies. I won’t think twice next time they ask me if I want to upgrade to first class.
Recently I went to Dubai, I stayed at my husband’s rental furnished flat. The next morning I was covered with bites. Immediately I knew its big bites but don’t know it’s bed bugs until I google search online a few days. I was so allergic to the bites & can’t stop scratching them. At last I went to a local pharmacy and got this ‘Fenistil Gel’ AKA Dimetindene maleate. it works really well. My bites stop itching, swelling reduced. Some bites I need to applied the gel 1-2 times a day then it stopped bothering me. The only problem now is the marks never go away. :(
While cleaning up infested areas will be helpful in controlling bedbugs, getting rid of them usually requires chemical treatments. Because treating your bed and bedroom with insecticides can be harmful, it is important to use products that can be used safely in bedrooms. Do not treat mattresses and bedding unless the label specifically says you can use them on bedding.
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