Final answer:
Hives, also known as urticaria, is the common name for the appearance of wheals during an allergic reaction.
Step-by-step explanation:
The common name for the appearance of wheals during an allergic reaction is hives. Hives, also known as urticaria, are raised, itchy red bumps on the skin that occur as a result of an allergic response. They can be caused by various triggers, such as foods, medications, insect bites, or environmental allergens.