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Hives (urticaria) visit
hives · urticaria · welts on the skin · allergic rash · itchy rash like nettle stings
Hives are itchy welts on the skin, like a nettle sting. The patches appear and fade quickly. The doctor looks for the cause and chooses the treatment.
When itchy welts appear on the skin, once or repeatedly over weeks.
⏱ Duration: the visit usually takes 20 to 30 minutes; tests as the doctor orders
Be sure to tell your doctor
How to prepare
- Photos. Take photos of the rash. It may be gone by the visit.
- Diary. Write down when the rash appeared and what came before it.
- Medicines. Do not stop your own medicines. If you take an allergy medicine, tell the doctor.
What to bring
- Photos of the rash
- A list of medicines and supplements
- A diary of flare-ups
- Past test results
How it goes
- The doctor asks about the rash in detail
- Examines the skin
- Sometimes draws a finger across the skin to check the reaction
- Orders tests if needed
- Chooses a medicine and explains how to take it
What you'll feel
- The exam does not hurt
- Itching can be severe. Treatment usually helps quickly
Afterwards
- Take the medicine as the doctor said, even if the rash has gone
- Avoid whatever triggers the rash, if known
- Do not wear tight clothes or take hot baths during a flare-up
- If the rash lasts more than 6 weeks, come back for another visit
Contact a doctor straight away if
- Swelling of the lips, tongue or throat, trouble swallowing or breathing: call your local emergency number
- Weakness, dizziness or fainting together with the rash: call your local emergency number
Common questions
Are hives contagious?
No. They do not pass from person to person.
Is it always a food allergy?
No. Often the cause cannot be found. It can follow infections or medicines. The doctor will help work it out.