What rinsing agent is recommended over freshwater to neutralize unfired nematocysts post-sting?

Answer

Vinegar or seawater

The initial response to a jellyfish sting involves carefully rinsing the affected area to deactivate any stinging cells, known as nematocysts, that have not yet fired their venom. Freshwater must be avoided because contact with it causes unfired nematocysts to discharge their toxic contents, significantly worsening the pain and venom load. Therefore, the generally accepted advice is to rinse using vinegar, if it is available, or seawater, as these solutions are more effective at neutralizing the stinging apparatus without causing further venom release, paving the way for safer subsequent treatment steps.

What rinsing agent is recommended over freshwater to neutralize unfired nematocysts post-sting?
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