Insect Bite or Sting
Medically reviewed by Drugs.com. Last updated on Mar 10, 2025.
Most insect bites and stings are not dangerous and go away without treatment. Your symptoms may be mild, or you may develop anaphylaxis. Anaphylaxis is a sudden, life-threatening reaction that needs immediate treatment. Common examples of insects that bite or sting are bees, ticks, mosquitoes, spiders, and ants. Insect bites or stings can lead to diseases such as malaria, West Nile virus, Lyme disease, or Rocky Mountain spotted fever.
DISCHARGE INSTRUCTIONS:
Call your local emergency number (911 in the US) for signs or symptoms of anaphylaxis,
such as trouble breathing, swelling in your mouth or throat, or wheezing. You may also have itching, a rash, hives, or feel like you are going to faint.
Seek care immediately if:
- You are stung on your tongue or in your throat.
- A white area forms around the bite.
- You are sweating badly or have body pain.
- You think you were bitten or stung by a poisonous insect.
Call your doctor if:
- You have a fever.
- The area becomes red, warm, tender, and swollen beyond the area of the bite or sting.
- You have questions or concerns about your condition or care.
Medicines:
You may need any of the following:
- Antihistamines decrease itching and rash.
- Epinephrine is used to treat severe allergic reactions such as anaphylaxis.
- Take your medicine as directed. Contact your healthcare provider if you think your medicine is not helping or if you have side effects. Tell your provider if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.
Steps to take for signs or symptoms of anaphylaxis:
- Immediately give 1 shot of epinephrine only into the outer thigh muscle.
- Leave the shot in place as directed. Your healthcare provider may recommend you leave it in place for up to 10 seconds before you remove it. This helps make sure all of the epinephrine is delivered.
- Call 911 and go to the emergency department, even if the shot improved symptoms. Do not drive yourself. Bring the used epinephrine shot with you.
Safety precautions to take if you are at risk for anaphylaxis:
- Keep 2 shots of epinephrine with you at all times. You may need a second shot, because epinephrine only works for about 20 minutes and symptoms may return. Your healthcare provider can show you and family members how to give the shot. Check the expiration date every month and replace it before it expires.
- Create an action plan. Your provider can help you create a written plan that explains the allergy and an emergency plan to treat a reaction. The plan explains when to give a second epinephrine shot if symptoms return or do not improve after the first. Give copies of the action plan and emergency instructions to family members, work and school staff, and daycare providers. Show them how to give a shot of epinephrine.
- Carry medical alert identification. Wear medical alert jewelry or carry a card that says you have an insect allergy. Ask your provider where to get these items.
If an insect bites or stings you:
- Remove the stinger. Scrape the stinger out with your fingernail, edge of a credit card, or a knife blade. Do not squeeze the wound. Gently wash the area with soap and water.
- Remove the tick. Ticks must be removed as soon as possible so you do not get diseases passed through tick bites. Ask your healthcare provider for more information on tick bites and how to remove ticks.
Care for a bite or sting wound:
- Elevate (raise) the area above the level of your heart, if possible. Prop the area on pillows to keep it raised comfortably. Elevate the area for 10 to 20 minutes each hour or as directed by your healthcare provider.
- Use compresses. Soak a clean washcloth in cold water, wring it out, and put it on the bite or sting. Use the compress for 10 to 20 minutes each hour or as directed by your provider. After 24 to 48 hours, change to warm compresses.
- Apply a paste. Add water to baking soda to make a thick paste. Put the paste on the area for 5 minutes. Rinse gently to remove the paste.
Prevent another insect bite or sting:
- Keep your skin and hair covered when you are outdoors. Wear a hat, pants, and a long-sleeved shirt. Do not wear bright-colored or flower-print clothing. Tuck your pants into your socks or boots. Tuck your shirt into your pants. Do not use hairspray, perfumes, or aftershave close to the time you will be outdoors.
- Decrease the risk for insects in your yard and home. Mow your lawn regularly. Trim the grass around birdbaths and fences. Clear out leaf piles. Stack firewood in a dry, sunny area. Empty any standing water. Put screens on all open windows and doors. Use citronella candles outdoors to keep mosquitos away. Put a tick and flea collar on pets.
- Apply insect repellant before you go outdoors. Use repellant that contains DEET on your skin. Use permethrin spray on your clothes.
Follow up with your doctor as directed:
Write down your questions so you remember to ask them during your visits.
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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.
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