Bite marks usually do not appear right away, and they can take several days to show symptoms, if at all, explains eMedicineHealth. The reaction to bites can be different for each person, and it can also depend on how long the bed bugs were able to feed and how many there were.
Some people develop itchy welts within a few days of the first bites, but it can take as long as 14 days before the bites itch. People tend to become increasingly sensitive to bedbug bites. If you have a bedbug infestation and the bugs bite repeatedly, you may get itchy welts within seconds. You will not see bed bugs living on your body.
Bed bug bite marks usually heal within 2 weeks and won't leave any permanent mark on the skin. In some cases, there are complications associated with bed bug bites. Of course, for many people, the appearance of red itchy welts on visible areas of skin like their face or arms is an unwanted complication of bed bug bites.
Bed bug bites typically appear in groups of three, called the "breakfast, lunch, and dinner" pattern. Each victim's reaction to bed bug bites is unique. Some may have a slight reddening of the skin. Others may have a more severe reaction, causing a raised, itchy rash. A raised rash may obscure the individual bites, making it challenging to identify. Sometimes, bites and lesions can throb and become very painful for days after the bugs bit you.
One of the easiest ways to identify a bed bug infestation is by the tell-tale bite marks on the face, neck, arms, hands, or any other body parts while sleeping. However, these bite marks may take as long as 14 days to develop in some people so it is important to look for other clues when determining if bed bugs have infested an area.
Mosquito bites may occur anytime during the day, at dusk or at night. Bed Bug Bite Symptoms: Usually are generally unnoticed and can be almost painless at the time of the bite. In fact, much of the time a person does not even realize they were bitten unless they notice the bite welts.