Skin Itching & Scratching can drive us up a wall. Everyone is itchy from time-to-time. However, for some of us, itchy skin can be much more severe—to the point of invading all aspects of our lives. Numerous factors can make us develop an itchy rash. Dry skin, poison ivy, skin conditions like eczema or psoriasis (skin cell build-up), a bug crawling on the skin, malfunctioning nerves (neuropathy), and other internal diseases (liver disease/kidney failure). Insect bites, allergic reactions (food allergies) and so many other agents may also trigger this itchy feeling.