Lifeguards at Patong Beach on this southern resort island have reported a significant increase in jellyfish stings among tourists, with several cases requiring hospital treatment.
Many swimmers have been stung by box jellyfish, experiencing red rashes, burning sensations and allergic reactions upon leaving the water, Patong Municipality lifeguards say.
Lifeguards administer first aid using vinegar to arrest the spread of venom and reduce stinging sensations. But several severe cases have required transfers to nearby hospitals for further treatment.
About Box Jellyfish
Box jellyfish have transparent, cube-shaped bell bodies, with venom contained in their tentacles, which contain numerous stinging cells. Swimmers may not see the jellyfish itself but can be stung by detached tentacles floating in the water.
Jellyfish venom varies in severity. Most species cause burning pain and skin inflammation, though some, particularly box jellyfish, can be fatal within minutes for those with allergies.
First Aid Guidance
Authorities recommend the following steps if stung:
Exit the water immediately. Do not continue swimming as symptoms may worsen and could lead to drowning in severe allergic reactions
For severe cases involving unconsciousness or breathing difficulties, call for help and begin CPR immediately
Pour vinegar on the wound quickly to prevent further venom release from stinging cells
Do not rub or touch the wound with bare hands as stinging cells may remain. Remove any tentacles carefully using tweezers
If vinegar is unavailable, rinse with seawater only. Do not use fresh water, urine or oils
Seek medical attention for severe reactions
Even for mild cases, observe the patient for at least one hour. Some species, particularly Irukandji jellyfish, initially cause mild symptoms that can become severe later.