Psoriasis is an autoimmune disease that causes skin cells to multiply up to 10 times faster than normal. There is a wide spectrum of severity and manifestations of psoriasis, but common characteristics of most types of psoriasis include skin redness (erythema), thickening, and scaling (squamae).

Eczema is the medical term used for a group of health conditions characterized by inflamed, irritated, itchy patches of skin. It can develop at any age, and approximately one in 10 people will develop some type of eczema in their lifetime. It is generally a chronic (long-term) condition that...