Blood veins in the affected area dilate (widen) causing a raised rash. Often fluid builds up in the tissues resulting in swelling and itching. In about 50% of hives cases the cause is unknown.

  • Hives can occur on any part of your body
  • In most cases symptoms disappear within 24-48 hours
  • You should seek medical treatment if symptoms persist after 48 hours
  • Treatment can include the use of over the counter anti-histamines to reduce the rash and ease any itching
  • Longer term urticaria may be treated with corticosteroid tablets however steroids are usually only prescribed for a short period of time.

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