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Hives and Angioedema (cont.)


Follow-up for Hives and Angioedema

Take all prescribed medicines as directed except for those drugs you are instructed to take only as needed. This will reduce the possibility of the hives or swelling coming back.

Contact a health care professional or return to the hospital if you have any of the following:

  • Rash or swelling returns or gets worse
  • Difficulty or severe side effects with your medicines
  • New symptoms
  • Sores or swelling of the mouth, tongue, or throat
  • Fever or chills
  • Difficulty with breathing or swallowing
  • Vomiting or diarrhea

Hives and Angioedema Prevention

Patient Comments

Avoid exposure to any food, medicine, animals, or physical agent that has been identified to cause your hives or angioedema.

Reducing emotional and physical stress may help. In rare cases, you may need to take antihistamines or other medicines for an extended time to prevent further hives or swelling.

Hives and Angioedema Prognosis

  • Hives and angioedema may be very uncomfortable but will not cause serious harm.
  • The hives will not leave scars.
  • Most people do well with treatment.
  • Hives and angioedema usually will last only a few hours to a few days. Chronic hives lasts longer than six weeks but is rare.

Support Groups and Counseling for Hives and Angioedema

Asthma and Allergy Foundation of America
1233 20th St NW, Suite 402
Washington, DC 20036

For More Information on Hives and Angioedema

American Academy of Allergy, Asthma & Immunology
555 East Wells Street, Suite 1100
Milwaukee, WI 53202-3823

National Institute of Allergy and Infectious Diseases
6610 Rockledge Drive, MSC 6612
Bethesda, MD 20892-6612


Guy, Allysia M., and Richard H. Sinert. "Angioedema." Apr. 14, 2010. <>.

Linscott, M. Scott. "Urticaria." May 27, 2014. <>.

Medically Reviewed by a Doctor on 6/22/2015

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Patient Comments & Reviews

The eMedicineHealth doctors ask about Hives and Angioedema:

Hives - Causes

What caused your hives?

Hives - Describe Your Experience

Please describe your experience with hives.

Hives - Home Remedies

What home remedies have been effective for your hives?

Hives - Treatment

What kind of treatment are you getting for your hives and angioedema?

Hives - Prevention

What strategies do you use to try to prevent hives?

Hives - Diagnosis

How were your hives diagnosed?

Read What Your Physician is Reading on Medscape

Angioedema »

Angioedema is a subcutaneous extension of urticaria, resulting in deep swelling within subcutaneous sites.

Read More on Medscape Reference »

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