Reassure the casualty and make him sit or lie down.
Wash wound with soap and water thoroughly to minimise infection.
Then, raise and support the wound whilst drying it with gauze.
Then, cover the bite with a bandage.
If the wound is large or deep, make arrangements to bring the patient to hospital. However if the bite has only pierced the skin, you may seek medical advice.
Reassure the casualty and make him sit or lie down.
If you can see the sting, brush or scrape it off sideways with something firm like a fingernail, credit card or plastic ruler as soon as possible.
Don’t try to use tweezers to pull it out, because you could squeeze poison from the sting into the casualty.
Raise the affected area and hold something cold against the injury to help reduce the swelling.
Use an ice pack or a frozen bag of vegetables which is wrapped in a tea towel or thin towel to avoid direct contact of the ice with the skin.
Keep the cold compress on for 15 - 20 minutes.
If the sting is in the mouth or throat, the casualty can suck an ice cube or sip cold water to try to prevent any swelling.
Monitor their breathing and level of response.