My 8 year old son been having this for 2 months straight it’s gotten worse from the first time he had this.. What is it

What began as a mild itch soon revealed itself as something far more serious. At first, the skin felt irritated, with burning sensations and red, swollen patches that appeared and disappeared unpredictably. Like many people, he assumed it was a simple allergy triggered by food, contact, or the environment. The symptoms seemed annoying but manageable—until they kept returning and spreading.
A medical diagnosis brought clarity and concern: urticaria, commonly known as hives. This condition is not merely a surface rash. It is driven by mast cells in the immune system releasing histamine into the bloodstream, causing fluid to leak from small blood vessels and form raised, itchy welts. While often harmless, the reaction can escalate.