Hello,
Without examination confirmation of a diagnosis is tough,but from the description ,it can be contact dermatitis,eczema,hives or systemic diseases like
liver and kidney disorders,diabetes, iron deficiency anemia, irritation
and allergic reactions to chemicals,wool,soaps,cosmetics and certain foods.
You can apply an anti-itch cream or lotion to the affected area. Oral antihistamine, such as Benadryl can also be used.