For most insect stings and bites, a combination of ice, hydrocortisone cream, and an over-the-counter antihistamine will handle the pain, swelling, and itch. The priority in the first few seconds is removing any stinger, then cooling the area down and applying something to calm the skin’s reaction.
Remove the Stinger Immediately
If you’ve been stung by a bee, the stinger is likely still embedded in your skin and pumping venom. You may have heard you should scrape it out with a credit card rather than pinch it, but research published in The Lancet found it makes no difference whether you scrape or squeeze. What matters is speed. An entomologist who tested this on himself with 70 bee stings found that waiting just eight seconds increased the size of the resulting welt by about 30 percent. So grab it however you can and pull it out.
Wasps, hornets, and yellow jackets don’t leave stingers behind. If you don’t see one, skip this step and move straight to treating the site.
Ice the Area First
Wrap ice or a cold pack in a thin cloth and hold it against the sting for 10 to 15 minutes. This constricts blood vessels, which slows the spread of venom and reduces swelling. Take the ice off for at least 10 minutes before reapplying to avoid skin damage. You can repeat this cycle several times in the first few hours, especially if swelling is significant.
Topical Treatments That Work
Once you’ve iced the sting, apply one of these directly to the skin. You don’t need all of them. Pick whichever you have on hand.
- Hydrocortisone cream (0.5% or 1%): This is the most effective over-the-counter option for calming inflammation and itch. Apply a thin layer several times a day until symptoms resolve. Both concentrations are available without a prescription.
- Calamine lotion: The pink liquid you probably remember from childhood. It cools the skin and relieves itching as it dries. Shake the bottle, dab it on, and let it air dry. Reapply as needed throughout the day.
- Baking soda paste: Mix about three parts baking soda to one part water until you get a thick paste. Spread it over the sting and leave it on for 15 to 20 minutes, then rinse. This can help neutralize some of the irritation and ease itching.
- Witch hazel: Contains natural compounds called tannins that reduce inflammation and soothe itching. Apply it with a cotton ball directly to the bite. It’s gentle enough to reapply several times a day.
- Lidocaine patches or cream (4%): If pain is your main problem, an over-the-counter numbing patch temporarily blocks pain signals at the skin’s surface. Apply one patch at a time, leave it on for up to eight hours, and don’t use more than three or four patches in a day. Available for adults and children 12 and older.
Reducing Swelling and Itch From the Inside
Topical treatments handle the surface, but if swelling spreads beyond a couple of inches or the itch is intense, an oral antihistamine can help. Standard options include diphenhydramine (the active ingredient in Benadryl, which causes drowsiness) or non-drowsy alternatives like cetirizine or loratadine. Follow the dosing on the package.
Over-the-counter pain relievers like ibuprofen also reduce inflammation and take the edge off throbbing pain. This combination of an antihistamine plus a pain reliever covers both the allergic itch response and the tissue inflammation at the same time.
What a Normal Reaction Looks Like
A sting typically causes immediate burning and sharp pain that fades within a few minutes, followed by redness and a raised welt at the site. Swelling and redness usually peak around 48 hours after the sting and can persist for up to a week. In some cases, the swelling can spread across an entire arm or leg. This is still considered a normal “large local reaction,” not an infection or allergy, and it responds to the treatments above.
Fire ant stings follow a slightly different pattern. The initial pain and welt usually resolve within 45 minutes, then a small white pustule forms at the site. This pustule is sterile (not infected) and typically breaks down on its own within 30 to 70 hours. Resist the urge to pop it, since breaking the skin open increases infection risk.
Infection vs. Normal Swelling
One of the trickiest things about sting aftercare is telling the difference between a normal inflammatory reaction and an actual skin infection. Both cause redness and swelling, but the timeline is different. A normal reaction starts immediately and gradually expands. A bacterial infection typically shows up a day or two after the sting, with redness and swelling that begin later rather than right away.
Signs that point toward infection rather than a normal reaction include increasing pain (not decreasing) after the first day, fever or chills, red streaks spreading away from the sting site, and warmth or pus at the wound. Bacterial infection after a sting is uncommon, but it does happen, particularly with fire ant stings or if you’ve been scratching the area with dirty hands.
Signs of a Severe Allergic Reaction
Most stings are painful but harmless. A small percentage of people, however, develop anaphylaxis, a full-body allergic reaction that can become life-threatening within minutes. The signs are distinct from a normal local reaction:
- Hives or flushing that spread well beyond the sting site
- Swelling of the tongue, throat, or lips
- Wheezing, difficulty breathing, or a feeling of throat tightness
- A rapid, weak pulse
- Dizziness or fainting
- Nausea, vomiting, or diarrhea
Anaphylaxis requires an epinephrine injection and emergency medical care. If you carry an epinephrine auto-injector, use it immediately. Even if symptoms improve after the injection, a second wave of symptoms (called a biphasic reaction) can occur hours later, so emergency follow-up is still necessary. If you don’t have epinephrine available, call emergency services right away. This is not a situation where waiting to see if it passes is safe.