Hives are a skin reaction that develops when the body releases histamine. The bumps and raised patches are often red, itchy, and swollen. They may occur in a single location or spread along the body.
What causes hives?
What causes hives can include:
- An allergic reaction
- The body’s overreaction to heat, sweat, or cold
- Stress
- Sunlight
- Bug bite
- Latex
- Medications
- Pet dander
- Pollen
- A preexisting infection can also trigger hives
How long do hives last?
Hives are usually harmless and temporary. A single hive tends to last a few minutes to a few hours but usually clears up within 24 hours.
How do you treat hives?
If you have a mild case of hives, it will likely go away in a few days. You can apply a soothing anti-itch lotion or cream and take an over-the-counter antihistamine such as Benadryl. If your hives last longer than a few days, cover a large area of your body, or are caused by an allergy, it is best to schedule an appointment with your local board-certified dermatologist. Please seek immediate emergent care if you are having problems swallowing, feeling faint, or experiencing swelling.
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