Bed Bug Bite Marks
Bed bug bite marks are usually red welts that can be flat or raised and are found on exposed areas of the body like arms, legs, and shoulders. Because these marks are similar to the bite marks of other pests (like mosquitoes or spiders), it’s virtually impossible to know you have bed bugs simply based on their bites. A good sign, however, is bite marks that appear in clusters or in a straight line.
Bed bugs bite by piercing the skin and then draw blood using a small tube from their mouth. They can feed in one spot for three to 10 minutes, and their bites are usually painless at first, then develop into itchy red marks.
Resist the Urge to Scratch
If you do find bed bug bites on your skin, resist the urge to scratch them. Scratching can lead to irritation and/or open wounds, which could further lead to an infection. Instead, apply a hot washcloth to the area to relieve the itch or use an over-the-counter antihistamine pill or cream.
Bed bug bites and their symptoms typically disappear in one to two weeks, however, individuals with recurring bed bug bites may experience prolonged or more severe symptoms.