Did you know the largest internal organ of the body is the liver? But the overall largest organ of the body is the skin. It’s no wonder the skin is involved with so many aspects of diseases: rash, itching, fever, external bleeding, swelling, pallor (turning pale), and cyanosis (turning blue). Doctors look for signs of hundreds of diseases by examining the organ that is most accessible, the skin.

Often the skin is our first line of defense against adverse conditions such as hot and cold...