Most jellyfish stings can be treated by rinsing the area with salt water to remove tentacles and prevent further release of venom and then immersing the affected area in hot water.

Someone having a severe reaction to a jellyfish sting needs emergency care that may include:

  • Cardiopulmonary resuscitation (CPR)
  • Life support to stabilize breathing, heart rate and blood pressure
  • Antivenin medication, if the sting is from a box jellyfish
  • Pain medicine

Other medical treatments

Other circumstances also may require doctor-supervised treatment:

  • A rash or other skin reaction due to delayed hypersensitivity may be treated with oral antihistamines or corticosteroids.
  • A jellyfish sting occurring on or near an eye requires immediate medical care for pain control and a good eye flushing. You will likely be seen by a doctor specializing in eye care (ophthalmologist).