Dry, itchy, irritated skin can have many causes. Irritants such as poison ivy, sunburn, insect bites, allergic reactions, and dry weather are just a few examples. which numbs the sensitive area. There are a number of skin conditions that may also cause itch skin. These include Eczema, Psoriasis, Contact and Seborrheic Dermatitis, Athletes Foot, Jock Itch and Ringworm. If you have an area of skin that is dry, itchy and irritated that does not improve with the use of these products you should visit your physician.