What are Hives? Understanding Urticaria and Skin Reactions
Hives, also known as urticaria, are raised, red, itchy welts that appear on the skin, often suddenly. They can vary in size and shape and may occur anywhere on the body. Hives are typically a response to an allergen or irritant but can also be triggered by stress, infections, medications, or unknown factors. While most cases are acute and resolve within a few hours or days, chronic urticaria can persist for six weeks or longer and may significantly affect quality of life.
Symptoms of Hives (Urticaria)
Recognizing the symptoms of hives helps in timely diagnosis and treatment:
- Itchy, Raised Welts: These welts can be small or large, often red or skin-colored, and may appear and fade quickly.
- Swelling (Angioedema): Deeper swelling may occur around the eyes, lips, hands, or feet.
- Burning or Stinging Sensation: Especially in the affected areas.
- Triggers: Exposure to allergens, medications, temperature changes, or pressure on the skin may provoke a flare-up.
Intermittent Occurrence: In chronic cases, welts may come and go unpredictably, often without an identifiable cause.