Most of us have had a bee sting at some point – it hurts, swells, and then usually goes away. But for some people, a sting can trigger a much more serious reaction. Knowing the difference isn’t just helpful — it can be lifesaving.
“A bee allergy happens when your immune system overreacts to the venom from a sting,” said associate professor Dr. Julia Tripple, director of the Division of Allergy and Immunology in the Department of Internal Medicine. “Instead of brushing it off, your body goes into defense mode, releasing chemicals that can cause symptoms throughout your body — not just where you were stung.”
A normal reaction to a bee sting causes pain, redness, and a little swelling right where you got stung. It’s annoying but not dangerous, and it usually fades within a few hours.
With a large local reaction, the swelling spreads, sometimes across a whole arm or leg. It can look dramatic and feel uncomfortable, but it’s still not typically dangerous.
An allergic (systemic) reaction, however, can be. Symptoms can include hives or itching in places far from the sting; swelling of your face, lips, or throat; trouble breathing; and/or feeling dizzy or faint.
This type of reaction is called anaphylaxis, Tripple said, and it needs immediate medical care.
“If you’ve ever had a reaction that felt bigger than just a sting, it’s worth bringing up with your health care provider,” she said. “Even if you’re not sure, getting evaluated can give you clarity and a plan.”
The good news is that bee allergies are manageable once you know you have one. Here are some ways to protect yourself.
- Carry epinephrine. If you’re diagnosed with a bee allergy, you’ll likely be prescribed an epinephrine auto-injector (like an EpiPen®). Keep it with you; it can stop a severe reaction in its tracks.
- Lower your risk. A few small habits go a long way: Wear shoes outside, skip heavily scented products, and be mindful around food and drinks outdoors.
- Consider allergy shots. Venom immunotherapy (allergy shots) is a game changer for many people. Over time, it trains your immune system to tolerate bee venom, dramatically lowering your risk of a severe reaction.
When it’s an emergency
If you notice any of the following symptoms, don’t wait it out — call 911 right away:
- Trouble breathing
- Swelling in the throat or tongue
- A racing heartbeat or dizziness
- Loss of consciousness
“Even if symptoms improve after using epinephrine, you still need medical follow-up,” Tripple said.
Bee stings are common, but serious allergic reactions don’t have to catch you off guard. With the right information and a plan in place, you can stay safe outdoors.
If you’ve had a concerning reaction, consider scheduling an evaluation for a stinging insect allergy with UTMB Health Allergy & Immunology today.