Jellyfish Sting Management

Diagnosis and Assessment

The American Heart Association recommends assessing pain severity as this guides treatment intensity, with pain management being a crucial aspect of jellyfish sting treatment 2, 3
The presentation of a jellyfish sting typically includes local dermatological manifestations and mild systemic symptoms, such as tachycardia 1, 2

The American Heart Association suggests liberally washing the affected area with vinegar (4-6% acetic acid solution) for at least 30 seconds to prevent further envenomation, with evidence supporting its effectiveness 1, 2, 3, 5
If vinegar is unavailable, a baking soda slurry can be used as an alternative, although its effectiveness may vary 2, 3, 6
Removing any visible tentacles by lifting or pulling (avoiding direct manual contact) is recommended, followed by rinsing with seawater 4
Immersing the affected area in hot water (as hot as tolerated, ideally 45°C/113°F) for at least 20 minutes or until pain resolves is considered the most effective treatment for jellyfish-related pain 1, 2, 3, 7, 5
Dry hot packs can be used as the next best option if hot water is unavailable, while dry cold packs are a second-line alternative but are less effective than heat 1, 2, 3, 5
Topical lidocaine cream (4-15% formulations) may provide additional pain relief, although its effectiveness may vary 4

The American Heart Association advises against applying pressure immobilization bandages, as this causes further venom release from already-fired nematocysts 1, 2, 8, 3, 7, 5, 9
Ineffective treatments, including aluminum sulfate, meat tenderizer, commercial aerosol products, and papain (papaya enzyme), should be avoided 1, 2, 3, 5

The American Heart Association recommends monitoring vital signs and watching for progression of tachycardia or development of systemic symptoms, with discharge criteria including pain adequately controlled, vital signs normalized, and no systemic symptoms developing 9, 5
Wound care instructions include keeping the area clean with soap and water, with evidence supporting the importance of proper wound care 1