How Long Do Hives From Allergies Last?


How Do Allergies Cause Hives?

When your body's exposed to an allergy trigger, it releases a molecule called histamine. Histamine causes common allergy symptoms like congestion and sneezing, but it can also make your blood vessels get bigger. When this happens in your skin, it can actually cause swelling, or what we call a hive.

How Long Do Hives Last From an Allergic Reaction?

How long your hives last will depend on the allergy trigger and the severity of your allergy. Hives can last an hour, a day, or even multiple days.

What Are the Best OTC Treatments for Hives?

The best over-the-counter (OTC) treatments for hives are things like antihistamines. Antihistamines like Claritin, Zyrtec, and Benadryl can provide temporary allergy relief. If you have severe hives, you should work with an allergist to try to figure out the best way to make them go away for good.

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If you are ready for long-term symptom relief, try immunotherapy. At Wyndly, our allergy doctors use sublingual immunotherapy to retrain your immune system to stop reacting to allergens in your environment. By becoming desensitized, you will get long-term relief from your allergy symptoms. Take our quick online assessment to see if Wyndly is right for you!

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