Hives From COVID: Hives During and After COVID-19 or Vaccination
Hives have been reported with COVID-19 infection, in the recovery period and, rarely, after vaccination. In most people they are mild and respond to standard treatment.
Hives During or After Infection
Hives can appear as part of the immune response to infection, sometimes early and sometimes after other symptoms fade. Some people develop chronic hives following an illness. See viral hives.
Hives After Vaccination
Delayed, mild hives or large local reactions after COVID-19 vaccination have been reported and usually resolve in days. Hives with breathing symptoms soon after any vaccine need emergency care. Speak with your doctor about future doses.
Treatment
Non-sedating antihistamines are typically effective. Rest, hydration and loose clothing help. Persistent hives beyond six weeks should be evaluated. Read about chronic hives.
When to Call 911
Call 911 or go to the nearest emergency room right away if hives come with trouble breathing, wheezing, tightness in the throat, swelling of the tongue or lips, dizziness or fainting. These can be signs of anaphylaxis, a severe allergic reaction that needs immediate treatment.
When to See a Doctor
See a doctor if your symptoms last more than a few days, keep coming back, cover large areas, or interfere with sleep or daily life. Dr. Tiffany Young founded the Hives Treatment Center in San Francisco, a practice focused on diagnosing and treating COVID-related hives.
Related Reading
You may also find these guides helpful: causes of hives and hives symptoms.
Frequently Asked Questions About COVID Hives
How long do COVID hives last?
Typically days to a couple of weeks, though some persist.
Are COVID hives contagious?
The hives are not; the virus may be.
Can long COVID cause hives?
Some patients report this, though research is ongoing.
Get Relief for Your Hives
Post-infection hives often respond to treatment. Visit our hives treatment page to see the latest treatment options for your outbreak.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. If you think you are having a medical emergency, call 911.
