What is recommended for the initial flush absent immediate access to vinegar for a Man o' War sting?

Answer

Seawater

In the immediate aftermath of contact, the primary goal is stabilization and gentle removal of surface irritants without causing further venom discharge. If vinegar, which can inactivate stinging cells, is not available, rinsing the area with seawater is the established practical recommendation. Seawater allows for the washing away of larger debris without inducing the osmotic shock that fresh water or alcohol causes, thereby preventing further envenomation while preparing for the next steps.

What is recommended for the initial flush absent immediate access to vinegar for a Man o' War sting?

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The best way to treat Man o' War and Box Jelly stings - YouTube

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