Swelling from a bee sting typically lasts two to three days, though some stings take up to seven to ten days to fully clear. How quickly your swelling resolves depends on where you were stung, how your immune system responds, and whether the stinger was removed promptly.
The Normal Swelling Timeline
Within minutes of a sting, the area around it will redden, swell, and hurt. This is your body’s inflammatory response to bee venom, which contains compounds that damage cell membranes and trigger blood vessels to leak fluid into the surrounding tissue. The pain is usually the first thing to improve, sometimes easing within a couple of hours. Swelling and redness follow a slower course, peaking in the first 24 to 48 hours before gradually fading over the next one to three days.
Stings on areas with looser skin, like the eyelids, lips, or the back of the hand, tend to swell more dramatically. A sting near your eye can swell the eyelid shut, which looks alarming but is a normal local reaction as long as the swelling stays in that area and doesn’t spread to your airway.
Large Local Reactions
About one in four people develops what’s called a large local reaction: swelling that exceeds 10 centimeters (roughly 4 inches) in diameter and lasts longer than 24 hours. If this sounds like you, you’re not in a small minority. Prevalence estimates run as high as 26% in the general population and 38% among beekeepers.
A large local reaction can spread well beyond the sting site. A sting on the wrist might cause swelling up to the elbow. The area can stay swollen, itchy, and warm for five to ten days. It’s uncomfortable and can look concerning, but it’s still a local response, not an allergic emergency. The key distinction is that the reaction stays connected to the sting site rather than showing up elsewhere on your body.
What Helps Reduce Swelling
If the stinger is still in your skin, scrape it out with a flat edge like a credit card. Honeybees leave their stinger behind, and the venom sac continues pumping for up to a minute after the sting. The faster you remove it, the less venom enters your skin.
Cold compresses applied for about 20 minutes at a time are one of the simplest ways to limit swelling. You can repeat this a few times with breaks of a few hours in between. Over-the-counter antihistamines help with itching and can modestly reduce the swelling. A strong hydrocortisone cream or gel applied to the sting site also helps control the local inflammation. For large local reactions that are especially uncomfortable, a short course of oral corticosteroids (typically tapered over three to five days) is sometimes used, though this is something to discuss with a pharmacist or doctor rather than self-prescribe.
Elevating the stung area when possible, especially a hand or foot, helps fluid drain and keeps swelling from worsening overnight.
Swelling That Signals an Allergic Emergency
A severe allergic reaction, called anaphylaxis, is an entirely different situation from local swelling. It can begin within five minutes of a sting, though it sometimes takes more than an hour to appear. The warning signs are unmistakable and involve your whole body, not just the sting site:
- Wheezing, trouble breathing, or tightness in the chest or throat
- Trouble swallowing or drooling
- Slurred speech, confusion, or feeling faint
- Hives spreading across areas far from the sting
Any of these symptoms after a bee sting require an immediate call to emergency services. If you carry an epinephrine auto-injector, use it right away. Anaphylaxis is rare with a first sting but can happen without warning.
When Swelling Gets Worse After a Few Days
Normal bee sting swelling follows a predictable arc: it peaks, then gradually improves. If your swelling is getting worse after the first 48 hours, or if redness is still expanding past the 72-hour mark, the cause may no longer be venom. A secondary bacterial infection (cellulitis) can develop when bacteria enter the skin through the puncture wound.
Cellulitis makes the skin painful, hot, and increasingly red, with the redness spreading outward rather than shrinking. You might also develop a fever or feel generally unwell with flu-like symptoms. The infection develops because the broken skin from the sting gives bacteria a pathway into deeper tissue layers, especially if you’ve been scratching.
Expanding redness more than three days after a sting, fever, or red streaks radiating from the sting site all warrant a visit to your doctor. Cellulitis is treated with antibiotics and resolves well when caught early, but it can worsen quickly if ignored.
What to Expect by Day
For a standard sting, here’s a rough timeline. Pain peaks immediately and often fades substantially within two to four hours. Swelling and redness peak around 24 to 48 hours, then steadily improve. By day two or three, most people notice a significant difference. Any remaining itchiness or slight discoloration can linger up to a week but shouldn’t be getting worse.
For a large local reaction, swelling may not peak until day two or three, and resolution takes closer to seven to ten days. The itching phase tends to last longer than the pain phase, and it can be intense enough to disrupt sleep. Keeping an antihistamine on board during this period helps considerably.