Hives (Urticaria & Angioedema)
Table of Contents
- Hives facts
- What are hives (urticaria) and angioedema? What do hives look like?
- What causes hives and angioedema? Are hives contagious? Does stress cause hives?
- What are the different kinds of hives?
- What are the signs and symptoms of ordinary hives?
- What are the risk factors and causes of ordinary hives?
- What are the causes of chronic hives?
- Are there other conditions that mimic hives?
- What specialists treat hives?
- What is the treatment for hives?
- What is the prognosis of hives?
Are there other conditions that mimic hives?
There are other rashes that may look like hives, but the fact that they remain stable and do not resolve within 24 hours is helpful in distinguishing them from hives. Such rashes may need to have a small specimen of skin removed and examined under the microscope (biopsy) to accurately determine the nature of the skin disease.
When to visit the doctor
If hives are making it difficult to sleep, then it may be necessary to see a physician. This would be especially important if you are taking nonprescription antihistamines. If your hives last longer than two months, it is also likely you will benefit from visiting a physician.