For injuries from marine animals, soaking the affected extremity in hot water for 30 minutes is recommended. How long should the soak last?

• A. 15 minutes
• B. 30 minutes
• C. 45 minutes
• D. 60 minutes

Answer: (B)

Hot-water immersion helps by heating the affected tissue long enough to inactivate many marine venom components and relieve pain. The goal is to give enough exposure to heat to affect the toxins but not so long that you risk burning the skin. About 30 minutes is the commonly recommended duration because it provides a balance: long enough to help reduce venom effect and pain, but short enough to minimize the chance of thermal injury. Shorter times may not adequately neutralize toxins, while longer times increase burn risk. While soaking, keep the water as hot as the person can tolerate without scalding.