Jellyfish: what to do in case of a sting?

How to recognize a jellyfish sting?

A jellyfish sting causes an electric shock. It is accompanied by itching and a burning sensation, according to the French National Society of Sea Rescuers (SNSM).

A red, extensive lesion 3 to 4 centimeters in size appears. The traces of the tentacle on the skin and the stinging filaments that released the venom can be seen.

To urinate or not to urinate?

If stung, stay calm and get out of the water. Don't hesitate to ask for help if the pain prevents you from swimming.

Once you're out of the water, you need to take care of the burn. The rumor is false: urinating on a jellyfish sting is useless. Worse, it would make things worse, especially the risk of secondary infections! If you're on a supervised beach, go to the first aid station; otherwise, here's what to do:

Rinse thoroughly with seawater, preferably lukewarm, without rubbing; Remove any stinging filaments stuck to the skin. To do this, apply warm, fine sand to the wound and then gently scratch with a stiff piece of cardboard (a postcard, for example) or a bank card. You can also use tweezers if you have some; Rinse again with seawater; If you can, or when you return home, disinfect the wound with an antiseptic and then apply an anti-inflammatory ointment; If you feel or notice signs of an allergy (very widespread skin reaction, headaches, vomiting, respiratory symptoms, etc.), call for help immediately.

Be aware that even dead jellyfish can still sting. A jellyfish washed up on the beach is therefore still dangerous: avoid walking on it and don't let children play with it.

What should you definitely not do (besides urinating on the wound)?

Do not rinse the sting with fresh water. This will burst the remaining cells, releasing the venom and increasing the pain. Avoid contact with the wound: do not touch it, do not scratch it, do not try to suck the venom out; do not try to cut it to make it bleed; do not apply alcohol; do not apply a tourniquet.

And to avoid jellyfish stings: visit supervised beaches and ask lifeguards about the possible presence of jellyfish. Flags or signs may also indicate the presence of the animals. On the beach, protect yourself with suitable footwear and wear a wetsuit in the water.