Get out of the water immediately
Rinse the sting with seawater
Do not rinse with fresh water
Remove tentacles with tweezers or a gloved hand
Do not rub the area
Soak the sting in hot water for 20 to 45 minutes
Use a cold pack if hot water is not available
Take an over-the-counter pain reliever if needed
Apply hydrocortisone cream or antihistamine cream for itching
Watch for trouble breathing, chest pain, swelling, or severe pain
Seek emergency help if symptoms are severe or spreading
Get medical care if the sting is from a box jellyfish or if symptoms worsen