hives
hives images
Hives, also known as urticaria, are raised, red, and itchy welts that appear on the skin due to histamine release from immune system cells. These welts can range from small spots to large patches, appear suddenly, and migrate across the body before fading. Whether acute (lasting under 6 weeks) or chronic (persisting beyond 6 weeks), hives can significantly impact daily life. Some cases involve angioedema—deeper swelling affecting the lips, eyelids, and throat that requires immediate medical attention.