What action is used to destroy the venom injected from a marine animal?

Heat is typically the recommended action to manage the venom from stings or bites of certain marine animals, such as jellyfish or stingrays. Applying heat to the affected area can help in several ways. It can denature the proteins in the venom, effectively neutralizing its harmful effects and reducing pain and inflammation. Furthermore, heat increases blood flow to the area, which can help the body's immune system respond more effectively to the venom.

In contrast, applying ice is often advised for other types of injuries, such as sprains or bruises, but may not be effective or safe for marine animal stings and could exacerbate the pain. Irrigating with freshwater is generally avoided because it can cause the nematocysts (stinging cells) of certain jellyfish to discharge more venom. While saline irrigation can sometimes be used in specific situations, it is not as effective as heat in alleviating the effects of the venom.