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Ministry of Health

Hives

Hives are raised, itchy rashes that appear on the skin. The rashes can appear on just one part of the body, or over large areas.

Last updated 2 January 2025

Hives can be caused by stress, infections, insect bites, changes in temperature, or allergic reactions to a range of substances and chemicals, including alcohol, pollen, latex, caffeine or certain foods. In many cases, the exact trigger is not found.

HOW TO TREAT AT HOME

  • Try to avoid scratching or rubbing the rashes, as this may worsen the itch or redness

  • Move to a cool room to work or sleep

  • Apply an ice pack (wrap a bag of ice in a towel) to the affected areas

  • Wear light and loose-fitting clothes

  • Over-the-counter allergy medication such as antihistamines can be used to treat your hives. Speak to your pharmacist if you are unsure how to take the medication, especially if you have any allergies, other medical conditions or are currently on other medications

SEE YOUR PHARMACIST IF:

  • You need further advice on how to manage your symptoms. Your pharmacist can also recommend other medications for your condition or advise if you need to see a GP, or visit the emergency department

SEE YOUR GP IF:

  • Your hives persist or worsen after a few days

GO TO THE EMERGENCY DEPARTMENT IF YOU ARE EXPERIENCING:

  • Swelling of the eyes, lips, tongue or throat

  • Difficulty in breathing or swallowing