"Erythema migrans, a rash with a great ability to spread through the skin, is a hallmark of Lyme disease, a serious bacterial ...

While Hollywood and urban legends paint dramatic tales about spider bites, medical professionals share a fascinating reality: ...

Appearance: Bed bug bites can look like small red marks on light skin, or dark spots on darker skin, and often appear as clusters of 3 to 5 bites in a zig-zag or line pattern. Bed bug bites often ...

And the itchy, red marks they leave behind will often be the only sign you have them in your home. But bedbug bites don't always cause a skin reaction, experts tell TODAY.com. And, even if they do ...