Seek immediate medical treatment if the person stung has:
If itching, redness, pain , and swelling of the skin ( cellulitis) persist around the sting, consult a doctor. The doctor may prescribe:
If it has been over 10 years since your last tetanus shot.
When swimming in jellyfish-infested areas, wear protective clothing (gloves, wet suits, dive skins). Avoid handling dead jellyfish, as they may still have live nematocysts that can release toxins.
Avoid swimming in known jellyfish-infested areas, and if you do, be aware of the types of jellyfish in the area.
Carry a basic first aid kit with an oral antihistamine when near water.
Take a basic first aid course before beach, snorkeling, swimming, or scuba diving trips.
At night, be cautious of jellyfish on the water's surface while swimming, snorkeling, or scuba diving.
Expel air from the alternate air source during scuba diving ascents to disperse any jellyfish above you.
Educate yourself about the jellyfish species in the waters where you swim, snorkel, or scuba dive.
Bring Safe Sea Jellyfish After Stingยฎ pain relief gel in case of stings.
Avoid swimming in waters with reported high jellyfish populations. Wearing a wet suit or Lycra dive skin can prevent stings.
If you have a known insect sting allergy, carry an allergy kit with injectable epi-pens (epinephrine, adrenaline) and ensure others can administer them if needed.
Do not touch marine life while swimming, snorkeling, or scuba diving. Touching marine animals can remove their protective coating, exposing them to bacteria and parasites, and it is stressful for them. Avoid touching corals to protect the environment.