When your body senses it’s under attack, it works hard to fight off the threat. However, in the process, it might take a few blows itself. This scenario can play out if you develop food poisoning.

A malar rash, or butterfly rash, typically appears across the cheeks and bridge of the nose in a butterfly shape. Lupus and rosacea are two conditions that can cause a malar rash. A malar rash can be ...