Immediate First Aid for Wasp Stings
Wasp stings are painful and can cause a range of reactions — from localised pain and swelling to life-threatening anaphylaxis in sensitive individuals. Knowing how to respond quickly and correctly can reduce pain, prevent complications and potentially save a life.
Step 1: Move Away From the Nest
The priority after a sting is to leave the area immediately. Wasp stings release alarm pheromones that signal other wasps to attack. Do not swat at wasps — this increases the alarm response. Run calmly and shelter indoors or in a vehicle.
Step 2: Check for the Stinger
Wasps, unlike bees, usually retain their stinger and can sting repeatedly. However, if you have been stung by a bee (or a European wasp in some circumstances), a stinger may remain in the skin. If present:
- Scrape it out sideways using a fingernail, credit card or the blunt edge of a knife
- Do not squeeze or use tweezers — this pushes more venom into the wound
Step 3: Treat the Sting Site
- Wash the area with soap and water to reduce infection risk
- Apply a cold pack (or ice wrapped in cloth) to the sting site for 10–15 minutes to reduce swelling and pain
- Elevate the affected limb if the sting is on an arm or leg
- Apply a hydrocortisone cream or antihistamine cream to reduce local itching and inflammation
- Take an oral antihistamine (e.g. cetirizine or loratadine) to help control the allergic response
- Over-the-counter pain relief (paracetamol or ibuprofen) can help with pain
Signs of Anaphylaxis — Call 000 Immediately
Anaphylaxis is a severe, life-threatening allergic reaction that requires emergency treatment. Symptoms typically develop within minutes of a sting and may include:
- Difficulty breathing or wheezing
- Swelling of the throat, tongue or lips
- Hives or flushing spreading beyond the sting site
- Rapid or weak pulse
- Dizziness, confusion or loss of consciousness
- Nausea, vomiting or abdominal cramping
If the person has an EpiPen (adrenaline auto-injector), use it immediately and call 000. Lay the person flat with legs raised unless they are having difficulty breathing, in which case help them sit up. Do not give anything to eat or drink.
Normal vs Abnormal Reactions
| Reaction type | Symptoms | Action required |
|---|---|---|
| Normal local reaction | Pain, redness, swelling at sting site (up to 10cm), resolves in hours to days | Home first aid |
| Large local reaction | Significant swelling extending beyond the sting area over 24–48 hours | See a GP; may require antihistamines or corticosteroids |
| Systemic allergic reaction | Hives, itching beyond the sting site, mild swelling elsewhere | Seek medical advice; may indicate risk of anaphylaxis with future stings |
| Anaphylaxis | Any of the symptoms listed above | Call 000 immediately |
After a Sting: Get the Nest Treated
If you were stung near your home or garden, there is a nest nearby that poses an ongoing risk to your family. Don’t wait for another encounter — have it professionally treated.
Pestyologist provides fast wasp nest removal across Sydney. Book today.