Xerotic eczema

Xerotic eczema (also known as asteatotic eczema, eczema craquels, craquelatum, pruritus himalis, or winter itch) is a form of eczema that is characterized by changes that occur when skin becomes abnormally dry, itchy, and cracked. Lower legs tend to be especially affected, although it can appear in the underarm area as well.

Xerotic eczema is common in elderly people, though it is not uncommon for people in their 20's. It can appear in red, bumpy, pimple-like irritations. Shaving can cause it to become inflamed.

Treatment
The way to treat xerotic eczema is to avoid scratching the affected area and to apply anti-itch or moisturizing lotion frequently.