The person displays signs of a severe allergic reaction. The sting is from a box jellyfish. The sting covers more than half an arm or leg. For more information about severe allergic reaction, see ...

Jellyfish are free-swimming, bell-shaped, gelatinous creatures with tentacles that may be more than 3 feet in length and may have stingers (nematocysts) capable of piercing human skin.

Treatment for jellyfish stings should be initiated as soon as possible. Seek immediate first aid; beach lifeguards are typically trained to administer this, especially if the local waters are ...

A painful sting may interrupt your beach day plans, but the good news is that most jellyfish stings will only result in mild symptoms that can be healed through first aid.

A painful sting may interrupt your beach day plans, but the good news is that most jellyfish stings will only result in mild symptoms that can be healed through first aid.

Severe box jellyfish stings can be fatal, triggering cardiac arrest in your body within minutes. Learn more about first aid, symptoms, side effects, and more.

Immediately rinse the affected area of skin with sea water before attempting to remove the tentacles. Do not rinse with fresh water or rub the area. Cover your hands and gently remove any tentacles.

If you’re able to get help from a lifeguard or someone who knows first aid, this is what you’ll need to do after a jellyfish sting. If you’re not able to get help from someone else, there ...

For bluebottle stings though, vinegar doesn’t help and MAY INCREASE the person’s pain. Stings are different depending on the jellyfish species, and much be treated as such. Universal Images ...

Rash, redness and blisters after getting stung by a jellyfish? Here's what you need to do.