On the back of the hand, the rash may appear as scaly red, itchy circles. On the palm, it may appear as dry, scaly skin. Impetigo is a bacterial skin infection that causes red, itchy sores ...

The most common type, localized granuloma annulare, causes raised, rounded skin plaques or papules that may form on the feet, hands, and fingers. These plaques and papules don’t typically itch.