What term describes a swollen itchy lesion?

The term that describes a swollen, itchy lesion is a wheal. Wheals are raised areas of skin that occur as a result of an allergic reaction or certain skin conditions, characterized by their swelling and itchiness. They are often temporary and can appear suddenly, usually resolving within a few hours to a few days. This is distinct from other terms like vesicles, which are small fluid-filled blisters; papules, which are small raised bumps that don’t contain fluid; and pustules, which are similar to papules but filled with pus. Understanding these definitions can help in identifying and differentiating various skin lesions encountered in cosmetology and dermatology.