It can even find its way to your lower back, adds Dr. Robinson. When the virus flares up—due to stress or illnesses that weaken your immune system—it can come to the surface of the skin, causing a ...

The rash tends to start on the chest or back. Then, over a few days, it spreads to the extremities. (Some people only have a small area of their body covered while others have very large areas with ...

A man developed a rash that looked like his entire back was covered with swollen whip-like marks two days after eating shiitake mushrooms. It turned out to be a rare condition known as shiitake ...