Which term refers to a raised, itchy area of skin?

The term that describes a raised, itchy area of skin is "wheal." This term is often used in dermatology and is characterized by a temporary swelling that is typically a result of an allergic reaction, insect bite, or other irritants. Wheals are usually raised and can be red or pale, and they often have an itchy sensation that can lead to scratching.

Understanding the characteristics of wheals is important in clinical settings, especially when addressing allergy-related reactions or skin conditions. The other terms do not refer to a raised, itchy skin area: "pallor" refers to an abnormal paleness of the skin, "pustule" indicates a small, pus-filled blister that generally is not itchy, and "eschar" is a dry, dark scab or dead skin that forms over a wound, usually not associated with itchiness. Thus, "wheal" is the appropriate term for describing this specific type of skin reaction.