Paper Wasp Sting: Symptoms, Treatment, and Prevention
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
A paper wasp sting usually causes pain, redness, swelling, and itching at the sting site, and most are managed at home with ice, elevation, antihistamines, and pain relievers. A minority of people have a large local reaction, and a smaller number have a whole-body (systemic) reaction that can become anaphylaxis, which is an emergency. Paper wasps don't leave a stinger behind, so one wasp can sting more than once [1].
Quick Answer: What should I do after a paper wasp sting?
A paper wasp sting is a sting from a wasp that builds umbrella-shaped nests and can sting multiple times without leaving a stinger. Treat it with a cold pack, elevation and an antihistamine, pain reliever or hydrocortisone as needed. A large local reaction happens in about 10% of cases. Call 911 for trouble breathing, dizziness or fainting. [1]
What the research says
Venom immunotherapy is highly effective for people with sting anaphylaxis. A 2026 clinical review of stinging-insect allergy (bees, yellow jackets, hornets, wasps, and ants) reports that patients with sting anaphylaxis should be prescribed epinephrine and venom immunotherapy, which prevents allergic reactions in up to 98% of patients; most patients may safely stop after 5 years, while high-risk patients may need to continue indefinitely (McMurray et al., Immunol Allergy Clin North Am, 2026).
Children usually have milder reactions than adults. A pediatric review notes that paper wasps belong to the Polistinae subfamily and that reactions are classified as local, large local, systemic, toxic, or unusual. In general, children sensitize less frequently and have less severe reactions than adults, and prevention after an anaphylaxis episode relies on early therapy and avoiding places and risky behaviors where insects are more likely to be encountered (Giovannini et al., Ital J Pediatr, 2024).
Research summaries are based on article abstracts retrieved from PubMed.
What are paper wasps?
Paper wasps range from about 0.5 to 1 inch long and build umbrella-shaped nests [1]. A paper wasp stings to defend itself, and because it doesn't leave its stinger behind, it can sting more than once [1]. Compared with a bee, the average wasp sting injects about one-tenth the venom [1]. In North America, stings are most frequent in August and September [1].
What symptoms and reactions can a paper wasp sting cause?
A paper wasp sting usually causes pain, redness, swelling and itching at the site. Some people react more strongly [1]:
Reaction | What to expect |
|---|---|
Local | Pain, redness, itching, and mild swelling at the sting site. |
Large local | Occurs in about 10% of cases. Swelling can reach up to 4 inches (10 cm) larger than normal, worsens for 1 to 2 days, and lasts about 5 to 10 days. |
Systemic | A reaction beyond the sting site, from hives to life-threatening anaphylaxis. Affects about 3% of adults and up to 1% of children. |
Delayed (serum sickness) | Appears 6 days to 2 weeks after the sting, with symptoms such as fever and joint pain. |
Source: Cleveland Clinic [1].
Visual overview of local, large local, and systemic symptoms of a paper wasp sting.
What is the first aid for a paper wasp sting?
For most stings, home care is enough to control pain and swelling [1]:
Cool the area. Apply a cold pack or ice.
Elevate. Raise the affected arm or leg.
Take medicine as needed. An oral antihistamine can ease itching, and acetaminophen or an NSAID can ease pain.
Soothe the skin. Hydrocortisone or calamine lotion can help with irritation.
If a stinger is present, scrape it off with a thin, dull edge rather than pulling it out with tweezers [1]. Pastes made with baking soda or meat tenderizer aren't effective, although they aren't likely to hurt you [1].
Step-by-step first aid guide for treating a paper wasp sting at home.
When does a paper wasp sting need emergency care?
A paper wasp sting needs emergency care when it causes anaphylaxis, a life-threatening reaction that can bring trouble breathing, facial or throat swelling, dizziness or a rapid, weak pulse. If you have an epinephrine auto-injector, use it right away, then call 911. Call 911 if you notice changes such as [1]:
Trouble breathing or wheezing
Swelling of the face, mouth, or throat
Dizziness, lightheadedness, or fainting
A rapid or weak pulse
Nausea, vomiting, or severe stomach cramps
If you have had a systemic reaction to an insect sting before, talk with an allergist. Testing can show whether you are allergic to venom, and treatment can include carrying epinephrine and venom immunotherapy [2].
How can you prevent paper wasp stings?
The best way to avoid a sting is to avoid disturbing wasps. Look for umbrella-shaped nests [1] before working around eaves, door frames, or attics, and keep away from nests you find. For people who have already had anaphylaxis, prevention also means avoiding places and behaviors where insects are more likely to be encountered [3].
Safety tips for preventing wasp stings and recognizing emergency warning signs.
What is the bottom line on paper wasp stings?
Most paper wasp stings are minor and respond to ice, elevation, antihistamines, and pain relievers. Know the signs of a severe reaction, call 911 if they appear, and see an allergist if you have ever had a systemic reaction to a sting [1] [2].
Frequently Asked Questions
Can a paper wasp sting more than once?
Yes. Paper wasps don't leave a stinger behind, so one wasp can sting multiple times.
How painful or dangerous is a paper wasp sting compared with a bee sting?
The average wasp sting injects about one-tenth the venom of an average bee sting, but any sting can cause a serious allergic reaction in a sensitive person.
How long does swelling from a paper wasp sting last?
A large local reaction, which occurs in about 10% of cases, can cause swelling up to 4 inches larger than normal. It worsens for 1 to 2 days and lasts about 5 to 10 days.
What is the best first aid for a paper wasp sting?
Apply a cold pack or ice, elevate the area, and use an antihistamine, acetaminophen or an NSAID, and hydrocortisone or calamine lotion as needed.
How do I remove a stinger?
Wasps usually don't leave a stinger. If one is present, scrape it off with a thin, dull edge rather than using tweezers.
Do home remedies like baking soda paste work?
Pastes made with baking soda or meat tenderizer aren't effective, although they aren't likely to hurt you.
What are the signs of a severe allergic reaction?
Call 911 for trouble breathing, swelling of the face or throat, dizziness or fainting, a rapid or weak pulse, or nausea, vomiting, or severe stomach cramps.
What is serum sickness after a sting?
Serum sickness is a delayed reaction that appears 6 days to 2 weeks after a sting, with symptoms such as fever and joint pain.
When is wasp season in North America?
Stings peak during August and September.
Can venom allergy be treated?
Yes. People with sting anaphylaxis should be prescribed epinephrine and venom immunotherapy, which prevents allergic reactions in up to 98% of patients, according to a 2026 clinical review.
Related Resources
External resource for deeper reading:
Cleveland Clinic. Paper Wasp Sting. Cleveland Clinic. Medically reviewed; last updated December 9, 2024. https://my.clevelandclinic.org/health/diseases/paper-wasp-sting
References
Cleveland Clinic. Paper Wasp Sting. Cleveland Clinic Health Library. Last updated December 9, 2024. https://my.clevelandclinic.org/health/diseases/paper-wasp-sting
McMurray JC, Bingemann TA, Golden DBK. Venom anaphylaxis. Immunol Allergy Clin North Am. 2026;46(2):325-345. PMID: 41932750. DOI: 10.1016/j.iac.2026.01.006
Giovannini M, Mori F, Barni S, et al. Hymenoptera venom allergy in children. Ital J Pediatr. 2024;50(1):262. PMID: 39707411. DOI: 10.1186/s13052-024-01731-9
Medical disclaimer
This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have about a medical condition.
Comments