Good article with some bite treatment remedies. They can itch, and last for weeks, coming and going. Bed bug bites can make you crazy because you may think the bite is gone, and then it will resurface, often after a hot shower or bath. This makes it difficult to track new bites. Some people use antihistimines to deal with the itching but always consult a physician before using exotic remedies. You don’t want to cause yourself more suffering than bed bugs do.

http://www.webmd.com/skin-problems-and-treatments/news/20100729/bed-bugs-biting-all-over-united-states