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Insect Stings

What are insect stings?

An insect sting occurs when an insect uses its stinger on you. The insect may be a bee, wasp, hornet, or yellow jacket. You may have an allergic reaction to the venom.

Stings can happen anywhere on the body. They can be painful and frightening. But most insect stings cause only minor discomfort. The site of the sting may sometimes become infected. Some people who are allergic may have a severe reaction, which can be fatal.

What causes insect stings?

Bees, wasps, yellow jackets, and hornets belong to a class of insects called Hymenoptera. Most stings are from these insects, particularly honey bees or yellow jackets. Yellow jackets are scavengers and are attracted to food at picnics. They can be aggressive when disturbed. Honey bees are less aggressive. But they are attracted to bright colors and perfumes.

Fire ants can sting multiple times. They are often found in southern states. These stings are more likely to become infected.

What are the symptoms of an insect sting?

The following are the most common symptoms of insect stings. But each person may have different symptoms. You may have local reactions at the site, such as:

  • Pain

  • Swelling

  • Redness

  • Itching

  • Warmth

  • Hives

Symptoms of a serious allergic reaction are:

  • Coughing or wheezing

  • Tickling in the throat

  • Tightness in the throat or chest

  • Breathing problems or wheezing

  • Nausea or vomiting

  • Dizziness or fainting

  • Sweating

  • Anxiety

  • Hives over a large part of the body

How are insect stings diagnosed?

You will likely know when you get an insect sting. If you think you may be allergic to the venom from a certain insect, talk with your healthcare provider. He or she can do allergy testing. You may have:

  • Blood tests

  • Skin tests

How are insect stings treated? 

Large reactions at the sting site and hives without any other symptoms don’t often lead to more serious generalized reactions. But they can be life-threatening if the sting happens inside the mouth, nose, or throat area. Swelling in these areas can cause problems breathing.

To treat a local skin reaction:

  • Remove the stinger by gently scraping across the site with a blunt-edged object such as a credit card, a dull knife, or a fingernail. Don’t try to pull it out, as this may release more venom.

  • Wash the area well with soap and water.

  • Apply a cold pack or ice pack wrapped in a clean, thin cloth to help reduce swelling and pain. Apply it for 10 minutes on and 10 minutes off for a total of 30 to 60 minutes. To make an ice pack, put ice cubes in a plastic bag that seals at the top.

  • If the sting happens on an arm or leg, keep the arm or leg raised to help reduce swelling.

To help reduce the pain and itching, you can:

  • Apply a paste of baking soda and water and leave it on for 15 to 20 minutes.

  • Apply a paste of unseasoned meat tenderizer and water, and leave it on for 15 to 20 minutes.

  • Apply a wet tea bag and leave it on for 15 to 20 minutes.

  • Use an over-the-counter product made for insect stings.

  • Apply an antihistamine or corticosteroid cream or calamine lotion.

  • Take acetaminophen for pain.

  • Take an over-the-counter antihistamine, if approved by your healthcare provider.

Watch closely for the development of more serious symptoms. If you have a serious reaction, you need emergency medical treatment right away. It may include:

  • Injectable epinephrine

  • IV (intravenous) antihistamines

  • Corticosteroids or other medicines

  • Breathing support

What are possible complications of insect stings?

The 2 greatest risks from most insect stings are allergic reaction (which can be fatal in some people) and infection (more common and less serious).

How can I help prevent insect stings?

To reduce the possibility of insect stings while outdoors, try the following:

  • Limit your use of perfumes, hair products, and other scented items.

  • Don’t wear brightly colored clothing.

  • Don’t go outside barefoot and don’t wear sandals in the grass.

  • Use insect repellent.

  • Stay away from places where hives and nests are present. Have the nests removed by professionals.

  • If an insect comes near, stay calm and walk away slowly. Don’t swat away stinging insects, especially yellow jackets.

If you have a known or suspected allergy to stings, you should:

  • Carry 2 epinephrine autoinjectors at all times and know how to use them. These are available by prescription.

  • Wear a medical alert bracelet or necklace with your allergy information.

  • Wear long-sleeve shirts and long pants when outdoors.

  • Talk with your healthcare provider about seeing an allergist for allergy testing and treatment. Venom allergy shots (venom immunotherapy) can be a life-saving treatment for people with venom allergy.

When should I call my healthcare provider?

Get emergency medical care if the sting was in the mouth, nose, or throat area, or if any other serious symptoms happen.

Key points about insect stings

  • An insect sting occurs when an insect uses its stinger on you. The insect may be a bee, wasp, hornet, or yellow jacket. The stinger may inject venom into your body.

  • You may have an allergic reaction to the venom and may need to use emergency medicine like epinephrine if you have a serious allergic reaction.

  • Most insect stings cause only minor discomfort, like pain, swelling, and redness near the site of the sting.

  • Some people may have a serious reaction. Symptoms include coughing, tightness in the throat or chest, and breathing problems.

  • Over-the-counter medicines can help with itching and pain.

  • Seek emergency medical care if you have a serious reaction, which can be fatal.

Next steps

Tips to help you get the most from a visit to your healthcare provider:

  • Know the reason for your visit and what you want to happen.

  • Before your visit, write down questions you want answered.

  • Bring someone with you to help you ask questions and remember what your provider tells you.

  • At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Also write down any new instructions your provider gives you.

  • Know why a new medicine or treatment is prescribed, and how it will help you. Also know what the side effects are.

  • Ask if your condition can be treated in other ways.

  • Know why a test or procedure is recommended and what the results could mean.

  • Know what to expect if you do not take the medicine or have the test or procedure.

  • If you have a follow-up appointment, write down the date, time, and purpose for that visit.

  • Know how you can contact your provider if you have questions.

Online Medical Reviewer: Deborah Pedersen, MD
Online Medical Reviewer: Fred Little, MD
Online Medical Reviewer: Louise Cunningham, RN
Date Last Reviewed: 11/1/2018
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