Neurodermatitis

Neurodermatitis can occur when something such as a tight garment rubs or scratches your skin. This irritation may lead you to rub or scratch your skin repeatedly. Common locations include ankles, wrist, outer forearm or arm, and the back of your neck.
Neurodermatitis, also known as lichen simplex, is a chronic form of dermatitis. Chronic itching and scratching can cause the skin to thicken and have a leather texture. Neurodermatitis results in a constant scratch-itch cycle. Although signs increase in times of stress, changes in the nerve fibers are also present.