What does the term wheal-and-flare describe?

The term "wheal-and-flare" refers specifically to a skin reaction that occurs when an allergen or irritant triggers the immune system. This reaction is characterized by the formation of wheals, which are localized raised areas on the skin that are often itchy and can be quite red. The "flare" component involves the surrounding skin becoming more inflamed and reddened. This occurs due to vasodilation and an increase in blood flow to the affected area, often as a result of histamine release during an allergic response.

Understanding this reaction is crucial in clinical settings, especially for medical scribes, as it helps in documenting key symptoms and potential recommendations for treatment. Wheal-and-flare responses are typically seen in allergic conditions, including urticaria (hives) and insect bites, making option B the most accurate description among the given choices.