Itchy skin that isn't accompanied by other obvious skin changes, such as a rash, is most often caused by dry skin
(xerosis). Other conditions cause itchy skin
as well. Skin
conditions like psoriasis,dermatitis and hives, internal diseases like liver and kidney disorders,diabetes, iron deficiency anemia, irritation and allergic reactions to chemicals,wool,soaps,cosmetics and certain foods can cause itchy skin.
You can apply an anti-itch cream or lotion to the affected area.