Without examination,confirmation of a diagnosis is tough,but it can be due to fungal infections like ring worm,eczema, psoriasis,dermatitis, scabies or irritation and allergic
reactions to chemicals,wool,soaps,cosmetics,clothes 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. You should take a comfortably cool bath and wear smooth-textured cotton clothing.