Itchy Rash (Urticaria) (Patient Counselling Guide)

Urticaria or hives is characterized by the appearance of wheals (raised, itchy areas of skin), angioedema (swelling and redness especially around the face, lips, and mouth that is painful or warm to the touch), or both. It may occur anywhere on the body but appears more commonly on the arms, legs, and trunk.It is usually temporary, appearing quickly (within minutes), and disappearing in <24 hours. Acute urticaria is defined by the occurrence of wheals or angioedema for <6 weeks while chronic urticaria is defined as wheals or angioedema occurring for ≥6 weeks.

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