We all saw that Friends episode (c'mon, you watch it, too) when Monica gets stung by a jellyfish. Joey remembers that peeing on a jellyfish sting takes the pain away, Monica "can't bend that way," and Joey gets "stage fright," leaving Chandler to save the day. Don't believe everything you see on TV.
Most jellyfish stings cause only pain and numbness. The Australian box jellyfish is the most venomous and deadly of all stinging marine creatures. Approximately 20 percent of those stung by the box jellyfish will die. Portuguese man-of-war is also dangerous but nothing
compared to the box jellyfish.
The following guideline can be applied to most jellyfish stings:
The patient should remove any visible tentacles, using gloves if possible. The area of the sting should be rinsed with household vinegar. The acetic acid of the vinegar can block discharge of the remaining nematocysts (stinging cells) on the skin and should be applied liberally. If vinegar is not available, salt water can be used to wash off the nematocysts.
In laboratory tests, urine, ammonia, and alcohol can cause active stinging cells to fire, which means applying them has the potential to make a minor sting worse, so urinating on a jellyfish sting is both gross and painful.
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