Remove any pieces of jellyfish that might be stuck in your skin by rinsing the wounds with seawater.
Vinegar or baking soda
Rinse the wounded area with vinegar or apply baking soda paste.
Take a hot shower or apply ice packs.
Take some pain relievers and calamine lotion or lidocaine to help relieve any itching or discomfort.
Don’t rub the area with towel or spread sand on the wound.
Don’t rinse the wound with fresh water.
Don’t apply human urine.
Don’t rinse with solvents (such as formalin, thanol or gasoline)
Don’t cover it with many bandages.