Symptoms include:

• Sharp stinging pain
• Redness at the area
• Itchy sensation
• Swell on affected skin areas
• Feeling of nausea
• Headache
• Muscular pain
• Respiratory difficulty
• Heart dysfunction
• Weakness, drowsiness

• Jellyfish tentacles are made up of cnidoblasts. These cells contain nematocytes that have stinging threads.
• Nematocyst uncoils releasing the stinging cells which then inject venom into the body.
• The venom, which is a neurotoxin, causes the burning sensation.

• Avoid swimming in areas where jellyfish population is known to be high.
• Wear specially made high-tech suits that block the stings.
• Avoid touching jellyfish washed ashore.