Humans have an exceptional ability to deal with viruses. In most cases, your immune system is able to fight an infection. On ...

Medically reviewed by Lauren Schlanger, MD Lyme disease is spread through a tick bite. Lyme disease is not contagious or ...

A new study conducted in mice suggests that, although it's not all good, our urge to scratch at itchy skin may have an ...

The itch from bug bites, rashes, and other skin conditions can sometimes be so overpowering that it feels impossible to avoid ...