Jellyfish stings hurt and some of them can even be deadly but the sting of the portuguese man o war which is technically a siphonophore and not a jellyfish is particularly painful. However if there is a risk a sting is from a portuguese man of war using a chemical can cause all of the stinging cells to fire at once and worsen the injury. Vinegar ammonia meat tenderizer or heat can inactivate the toxin in jellyfish venom.
A jellyfish can sting you even if it s dead. One of the most painful effects on skin is the consequence of attack by oceanic hydrozoans known as portuguese men of war which are amazing for their size. The sting of the portuguese man of war.
In fact if it were treated in the same way as a jellyfish sting it would actually make the situation worse. The portuguese man o war is often mistaken for a jellyfish however it is completely different and the treatment for its extremely painful stings is also different than for that of a jellyfish. These are not caused by any impact or cutting action but by irritating urticariogenic substances in the tentacles.
They result in severe dermatitis characterized by long thin open wounds that resemble those caused by a whip. Stings from a portuguese man o war are often extremely painful. New research published in the journal.
Stings from a portuguese man o war are as common as they are dangerous yet there s a lack of consensus over the best way to treat these painful pricks.