Overview

Chronic hives are long-lasting raised, red, and itchy patches of skin. Hives usually have red borders and pale centres. They range in size from ½ centimetre to 8 centimetres (¼ inch to 3 inches) or more across. They may seem to move from place to place on the skin. Several hives may join to form a large area of raised, red skin.

When hives and swelling last more than 6 weeks even with treatment, they are called chronic.

Hives may occur with swelling under the skin. But you may have swelling without hives. Swelling may hurt a bit, but it does not usually itch like hives.

You cannot spread hives to other people.

How can you care for yourself at home?

• Avoid whatever you think may have caused your hives, such as a certain food or medicine. But you may not know the cause.
• Put a cool, wet towel on the area to relieve itching.
• Your doctor may suggest a non-drowsy antihistamine, such as loratadine (Claritin), to help control the hives. Be safe with medicines. Read and follow all instructions on the label.
• Your doctor may prescribe a shot of epinephrine to carry with you in case you have a severe reaction. Learn how to give yourself the shot, and keep it with you at all times. Make sure it has not expired.
• If your doctor prescribes another medicine, take it exactly as directed.