When treating bites and stings, you should use a simple sequence: remove the stinger or tick if present, clean the area with soap and water, and apply a cold compress for 10 to 20 minutes to reduce pain and swelling. Those three steps handle the majority of common bites and stings. Beyond that, over-the-counter antihistamines and hydrocortisone cream can manage itching, and knowing a few creature-specific details will help you respond correctly in less common situations.
The Universal First Aid Steps
Regardless of what bit or stung you, start by moving away from the source to avoid additional injuries. Then follow these steps:
- Remove the stinger or tick if one is still attached (more on technique below).
- Wash the area gently with soap and water.
- Apply a cold cloth or ice pack wrapped in fabric to the site for 10 to 20 minutes. This limits swelling and dulls pain.
- Elevate the limb if the bite or sting is on an arm or leg.
These steps work for mosquito bites, ant bites, bee stings, wasp stings, spider bites, and most other common encounters. They’re the foundation you build on depending on what got you.
Bee and Wasp Stings
Honeybees leave their stinger behind after they sting. The stinger continues pumping venom on its own through a tiny piston-like mechanism, and research shows it can finish delivering its full venom load in about 30 seconds. That makes speed the priority. Old first aid guides recommended scraping the stinger out with a credit card or dull edge to avoid squeezing more venom from the sac, but a systematic review of the available evidence found that the method of removal matters far less than how fast you do it. Pinching and pulling works just as well as scraping, so use whatever you can get your hands on immediately.
Once the stinger is out, wash the area and apply cold. For itching and swelling that develops afterward, you can apply hydrocortisone cream or calamine lotion up to four times a day. If the itching is widespread or persistent, an oral antihistamine like diphenhydramine (Benadryl), cetirizine (Zyrtec), or loratadine (Claritin) can help. Wasps, hornets, and yellow jackets don’t typically leave a stinger behind, so you can skip straight to cleaning and cold application.
Tick Bites
Ticks require a specific removal technique because their mouthparts anchor into your skin. Use fine-tipped tweezers, grasp the tick as close to the skin surface as possible, and pull upward with steady, even pressure. Don’t twist, jerk, or crush the tick. After removal, clean the bite area and your hands with rubbing alcohol or soap and water.
If you were bitten in an area where Lyme disease is common (primarily the Northeast, upper Midwest, and Pacific coast of the United States), pay attention to how long the tick was attached. A preventive single dose of an antibiotic can reduce your risk of Lyme disease, but only when the tick has been attached for an estimated 36 hours or longer, you can start the medication within 72 hours of removal, and the tick is identified as a blacklegged (deer) tick. If those criteria fit your situation, contact your doctor promptly.
Spider Bites
Most spider bites cause mild, localized irritation and respond well to the basic first aid steps: wash with soap and water, apply ice, and take an over-the-counter pain reliever if needed. Two spiders in the U.S. warrant closer attention.
Brown recluse bites often don’t hurt right away. Over several hours or even days, the area may develop a deep blue or purple center surrounded by a whitish ring and a large red outer ring, creating a bull’s-eye pattern. The skin can eventually blister and turn black. Fever, body aches, nausea, and headache sometimes follow. There’s no specific medication that treats brown recluse venom, so medical care focuses on wound management and preventing infection. Severe cases occasionally require surgery if the tissue damage is deep.
Black widow bites are the opposite: you’ll typically feel immediate burning pain and swelling, and you may see two small fang marks. Within hours, you can develop muscle cramping in the stomach, chest, shoulders, and back, along with sweating, dizziness, and weakness. Treatment involves pain control, muscle relaxants, and in some cases antivenom. If you suspect either of these spiders, head to an emergency room. You can also call the Poison Control hotline at 800-222-1222 for guidance.
Snake Bites
The most important thing to know about snake bites is what not to do. The World Health Organization advises against cutting the wound, applying suction, or using a tight tourniquet. These outdated methods don’t remove meaningful amounts of venom and can cause additional tissue damage. Ice should also be avoided directly on a snake bite, as it can worsen local injury.
Instead, keep the bitten limb still and positioned at or below heart level, remove rings or tight clothing near the bite before swelling starts, and get to a hospital as quickly as possible. Antivenom given in a medical setting is the only proven treatment for venomous snake bites. Try to remember the snake’s appearance, but don’t risk another bite attempting to capture or photograph it.
Jellyfish Stings
Jellyfish stings work differently from insect stings. The tentacles deposit thousands of tiny stinging cells called nematocysts into your skin, and many of those cells can still fire after the tentacle is removed. Rinsing with vinegar or rubbing alcohol helps deactivate unfired nematocysts for most jellyfish species. There is one notable exception: do not use vinegar on Portuguese man-of-war stings, as it can trigger additional venom release.
After deactivating the nematocysts, carefully remove any visible tentacle fragments (using tweezers or a gloved hand, not bare skin). Ice packs or hot water immersion can both help with pain and swelling. Avoid rinsing with fresh water, which can cause remaining nematocysts to fire.
Over-the-Counter Treatments That Help
For the itching and swelling that follow most common bites and stings, two types of products are your go-to options. Topical hydrocortisone cream (1% strength, available without a prescription) reduces inflammation at the site and can be applied up to four times daily until symptoms resolve. Calamine lotion is another option for itch relief. Oral antihistamines tackle itching from the inside, which is especially useful when you have multiple bites or when a single bite causes a large local reaction. Non-drowsy options like cetirizine, loratadine, and fexofenadine work well during the day, while diphenhydramine is effective but causes drowsiness.
Signs of a Serious Reaction
Most bites and stings cause only local discomfort, but a small percentage trigger anaphylaxis, a severe allergic reaction that can become life-threatening within minutes. Watch for throat or tongue swelling, difficulty breathing or wheezing, a sudden drop in blood pressure (which can feel like dizziness or fainting), and widespread hives or flushing beyond the sting site. If any of these develop, use an epinephrine autoinjector immediately if one is available and call emergency services.
Even without anaphylaxis, a bite or sting can become infected over the following days. Signs of secondary infection include increasing redness that spreads outward from the bite, warmth and tenderness that worsens rather than improves, red streaks extending from the site, and swelling or pus developing days after the initial bite. These symptoms point to bacterial infection, most commonly cellulitis, and typically require antibiotics.