If your child has been stung by a wasp, here are some steps you can take:

1. Remove the stinger: If the stinger is still in the skin, remove it as soon as possible. You can use a credit card or your fingernail to scrape it out. Do not use tweezers, as this can squeeze more venom into the skin.

2. Wash the area: Clean the area around the sting with soap and water.

3. Apply a cold compress: Apply a cold compress, such as a bag of ice or a cold washcloth, to the sting site for 10-15 minutes at a time. This can help reduce swelling and pain.

4. Give pain relief: If your child is in pain, you can give them acetaminophen or ibuprofen. Follow the dosage instructions on the label.

5. Watch for signs of an allergic reaction: If your child has a severe allergic reaction, such as difficulty breathing, swelling of the face or throat, or hives, call 911 immediately.

6. Seek medical attention: If the sting is on the face, in the mouth, or near the eyes, or if your child has multiple stings, you should seek medical attention.

Remember, prevention is key. Teach your child to avoid swatting at bees or wasps, and to stay away from areas where they might gather, such as garbage, dog droppings, and fallen fruit. Encourage your child to wear shoes and socks when playing in the grass, and to wear long pants and a long-sleeved shirt when playing in wooded areas.