Itchy skin is an uncomfortable, irritating sensation that makes you want to scratch. Also known as pruritus,itchy skin may be the result of a rash or another condition, such as psoriasis or dermatitis. Or itchy skin may be a symptom of a disease, such as liver disease or kidney failure. Depending on the cause of your itchy skin, it may appear normal. Or it may be red or rough or have bumps or blisters. Long-term relief requires identifying and treating the cause of itchy skin. Itchy skin treatments include medications, wet dressings and light therapy. Self-care measures, including using anti-itch products and taking cool baths, also can help.consult dermatologist