Experts share the soothing ingredients that help relieve itch from atopic dermatitis. Dry skin is caused by a combination of things — dehydration, environmental stressors, vitamin deficiencies, the list goes on. But there’s a skin condition that causes inflamed, itchy skin. It’s called eczema. According to the National Eczema Association, one in 10 Americans will get eczema at some point in their lives (peaking in early childhood), and there are currently 31.6 million Americans living with it. The bottom line: eczema is real and very common.