Different Types of Hives

Hives are usually raised, itchy welts that can change shape or appear in new places. Acute episodes may follow an infection, medicine, food, or sting, although a trigger is not always found. Chronic hives recur over time and may have no clear external cause. Physical hives can follow scratching, pressure, temperature change, sunlight, or exercise. Deeper swelling of the lips, eyelids, tongue, hands, or feet is called [Angioedema](/conditions/angioedema/) and can occur with hives or separately.

Keep a record of foods, medicines, infections, pressure, heat, cold, and activity around each episode. Avoid known triggers without making broad dietary changes unless a clinician advises it. Cool the skin, wear loose clothing, and avoid scratching. An oral [Antihistamine Treatment](/treatments/medical-dermatology/oral-antihistamine-therapy/) may be recommended; stronger treatment is sometimes used for severe episodes under medical supervision.

Call emergency services immediately for hives with trouble breathing, wheezing, throat tightness, faintness, or swelling of the tongue or mouth. Arrange medical review for recurring [Itchy Skin](/symptoms/itchy-skin/), extensive [Skin Swelling](/symptoms/skin-swelling/), bruising, fever, pain, or marks that remain in the same place rather than moving or fading.

Ask whether the pattern suggests an allergy, a physical trigger, or recurring hives without an obvious cause. Discuss a safe medicine plan, warning signs of angioedema, and whether you should carry emergency treatment based on your history.