How to Treat a Bee Sting: First Aid, Swelling Relief, and When It's an Emergency

A sharp pinch, a flash of pain, and then a red, swelling bump — getting stung by a bee is startling, and your first instinct is usually to ask what to do right now. The good news: for most people, a single bee sting is painful but harmless, and a few simple steps at home are all you need.

Here's exactly how to treat a bee sting, how to calm the swelling and itching, and the small set of warning signs that mean you should stop reading and call for emergency help instead.

How to Treat a Bee Sting Step by Step

The single most important first step is to remove the stinger as fast as you can. A honeybee's stinger keeps pumping venom into your skin, and that venom enters your body within seconds — so speed matters more than technique. Scrape it out with a fingernail, the edge of a credit card, or a piece of gauze. Do not use tweezers and do not pinch it: squeezing the attached venom sac can push more venom into the skin.

Once the stinger is out, the rest of the first aid is the same across dermatology and public-health authorities like the AAD, Mayo Clinic, and the CDC.

• Remove the stinger immediately by scraping (never tweezers, never squeezing).
• Wash the area gently with soap and water.
• Apply a cold pack or ice to reduce pain and swelling.
• Take an over-the-counter pain reliever if it hurts.
• Use hydrocortisone cream or calamine lotion on the spot.
• Take an oral antihistamine (such as diphenhydramine or chlorpheniramine) to ease itching and swelling.
• Try not to scratch — scratching makes swelling and itching worse and raises the risk of infection.

How Long Does a Bee Sting Last?

For most people, an ordinary bee sting is a brief event. The pain and swelling usually peak quickly and then settle, and Mayo Clinic notes that swelling and pain typically resolve within a few hours. You may have a small red, itchy bump for a day or two afterward, which is normal.

If the swelling keeps growing well beyond the sting site, you may be having what doctors call a large local reaction (more on that below). A normal sting, by contrast, stays small and starts improving the same day.

Large Local Reactions: When Swelling Gets Big

Sometimes the area around a sting swells far more than expected. A large local reaction is defined as swelling greater than 10 cm (about 4 inches) in diameter that lasts more than 24 hours. It can look alarming — a whole forearm or calf may puff up — but it is not the same as a dangerous whole-body allergic reaction.

These reactions typically peak 1 to 2 days after the sting and take about 7 to 10 days to fully resolve (on average around 7 days). Cold packs, NSAID pain relievers, and antihistamines help, and a doctor may prescribe a short course of oral corticosteroids for severe swelling. If a large local reaction is near your eye, mouth, or throat, or it's spreading quickly, have it checked promptly.

When a Bee Sting Is an Emergency

A small number of people are allergic to bee or wasp venom, and for them a sting can trigger anaphylaxis — a severe, whole-body allergic reaction that is a medical emergency. Insect stings are among the most common triggers of anaphylaxis in adults and account for roughly 20% of fatal anaphylaxis cases, so it's worth knowing the signs.

Call emergency services or go to the ER immediately if, after a sting, you notice any of the following — even if the sting itself looks minor.

• Swelling spreading to the face, lips, neck, or tongue
• Difficulty breathing, wheezing, or tightness in the throat
• Hives or widespread itching away from the sting
• Nausea, vomiting, dizziness, or fainting
• Severe chest pain, heavy sweating, or slurred speech

If You Know You're Allergic to Bee Stings

Anyone with a known severe venom allergy should carry an epinephrine auto-injector (such as an EpiPen) at all times and use it at the very first sign of a serious reaction — then call emergency services. Wearing a medical ID is also recommended so others can act fast if you can't speak for yourself.

For longer-term protection, venom immunotherapy (allergy shots) is the most effective treatment for people who have had a previous whole-body reaction to a sting. It provides complete protection in 77 to 84 percent of people allergic to honeybee venom and 91 to 96 percent of those allergic to wasp and other vespid venom. If you've ever had a systemic reaction, ask an allergist whether immunotherapy is right for you.

How to Lower Your Chances of Getting Stung

Bees usually sting only when they feel threatened, so a few habits cut your risk outdoors. Stay calm and move away slowly rather than swatting if a bee is near you. Avoid bright floral prints and strong perfumes, keep food and sugary drinks covered at picnics, and wear shoes when walking through grass or clover where bees forage.

None of this guarantees you'll never be stung, but combined with knowing the first-aid steps above, it means a surprise sting is far less likely to ruin your day.