Why You Should Avoid Urinating on a Jellyfish Sting (And the Best Remedies to Use Instead)

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What is it about the beach that is so alluring? No other type of terrain attracts more vacationers than beautiful stretches of coastline — like these 50 best beaches in the world — so much so that we’ve come to equate a vacation with lounging on the sand while cooling off with a swim in the turquoise waters of the sea. Heading to the ocean has largely come to define what travel is, and while most anyone understands the joys and splendors offered up by a trip to the beach, there are also basic dangers that come with it.

People often underestimate the power and hidden hazards of the sea, such as rip currents and undertow, which makes drowning the number one concern. Look no further than this scenic California beach that has earned a chilling nickname for its dangerous reputation, and you’ll see that even the most idyllic seaside spot must be approached with caution and respect.

This also goes for the animals that call the ocean home. Shark attacks — while exceedingly rare — do happen from time to time, and there are other creatures to steer clear of such as stingrays, sea snakes, and the extremely toxic lionfish. Jellyfish, however, pose the greatest danger to anyone who gets in the water, with some species delivering enough venom to prove lethal. If you do get stung, there are ways to treat the injury. However, despite what you may have heard, peeing on the wound is never a good idea.

We’ve all heard the advice that if you’re stung by a jellyfish, the best immediate first aid is to urinate on the affected area. Where does this come from? Well, the idea stems from the notion that compounds found in urine, such as ammonia and urea, can help break down and unlodge the jellyfish stinging cells that are stuck in your skin. 

However, peeing on a jellyfish sting won’t likely make things any better. In fact, it could serve to worsen the pain, because the venomous barbs embedded in the skin react to external stimuli. This means that the power of the pee hitting the wound may cause the barbs to release even more venom, exacerbating an already painful situation. 

Instead of perpetuating this unnecessary (not to mention unhygienic) urban myth, medical experts advise that you use seawater to gently remove any tentacles, as freshwater may cause them to fire off more venom. Any remaining barbs should be picked out with tweezers, or — if you don’t have any on hand — gently scraped off with a credit card. Alcohol or vinegar can also be especially effective in treating the sting, and a hot shower or soak will also help ameliorate the pain, as heat may break down the venom. If you find yourself with chest pain, muscle cramps, difficulty breathing, nausea, or vomiting, seek medical attention immediately.