The venom of the various species may vary in toxicity (unfortunately there’s little published work regarding the subject), all are broadly similar in composition. The venom is protein-based and contains a cocktail of chemicals designed to cause both intense pain and rapid tissue degeneration (necrosis). If stung, at the very least expect excruciating localized discomfort, headaches, nausea and diarrhea. More severe reactions than this are not uncommon, and medical advice should be sought no matter how serious the sting. An immediate form of treatment is to submerge the wound in water as hot as one can stand, as this helps to break down the toxic proteins.
