[Lani]

a quick review of recent literature found the folowing:

Apply a topical gel with xylocaine--the calcium channel blocker stops the jellyfish toxin's effect (just published this year)

there seems to be a product available on Amazon which was developed to prevent the jellyfish sting--it is from Israel and one or two trials have found it to be effective one in Norway (don't know what kind of jellyfish they have, but sounds like I have more reading to do!)

Sounds like both these bits of info might help those who plan to play mermaid.