The sequence is focused on injuries from venomous spines in marine creatures such as stingrays, sea urchins, and spiny fish. The hallmark of these envenomations is that heat helps neutralize the venom, so hot-water immersion is a key step (about 40–45°C, as hot as tolerated, for 30–90 minutes). Along with this, the steps usually include removing visible spines or foreign material if possible, gently cleaning the wound, and applying a sterile dressing, with pain relief and tetanus consideration. You’d also watch for infection or signs of worsening injury and seek medical care if fragments remain embedded, pain is severe, or there are systemic symptoms. This approach differs from jellyfish stings, which often require different measures like vinegar for nematocyst inactivation, or coral scrapes and sea turtle bites, which involve different wound care and sometimes antibiotics or surgical evaluation.