Hello,
Without examination,it is very difficult to confirm a diagnosis,but the various possibilities for your symptoms are dermatitis,
Eczema,sweat dermatitis,fungal infectionsand 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 also cause itchy skin.
You can apply an anti-itch cream or lotion to the affected area.