An irukandji jellyfish has been found off the coast of Fraser Island for the second time in two years.

Lifeguards were dragging the deadly jellyfish off the island's west coast on Sunday in response to a spate of stings in the Wide Bay last summer.

James Cook University Professor Jamie Seymour said there was a lot still not known about the number and types of the irukandji species in the region.

"There's not a huge chance of being stung, however there are specific places along the east coast of Australia and Queensland that you definitely do not want to swim because that's where you're going to get stung," he said.

"The trick is for us to work that out, and there seems to be a couple of spots on the west coast of Fraser that are very specific."

Tropical stinger safety tips: Wear protective clothing (wet suit or Lycra body suit), to reduce exposure to potential stings

Wear protective clothing (wet suit or Lycra body suit), to reduce exposure to potential stings Protect your face and avoid putting your head underwater at high-risk locations

Protect your face and avoid putting your head underwater at high-risk locations In the absence of a full Lycra suit, wear other protective clothing such as long pants tucked into socks

In the absence of a full Lycra suit, wear other protective clothing such as long pants tucked into socks Enter water slowly as marine stingers will often swim away from people given the opportunity and time

Enter water slowly as marine stingers will often swim away from people given the opportunity and time If you are planning a trip to Fraser Island, take vinegar with you



Professor Seymour previously described a sting from an irukandji jellyfish as overwhelming.

"This is a 10 out of 10 pain that you are going to hang onto for probably six to 12 hours," he said.

"There's usually severe vomiting, nausea, stomach cramps and about 10 to 15 per cent of patients end up with cardiac problems.

One expert says irukandji jellyfish appear to be moving south. ( AAP )

"Linked with that is this feeling of impending doom where everything is going to go wrong and there's nothing you can do to fix it."

Surf Life Saving Queensland (SLSQ) regional manager Craig Holden said beachgoers in the area should be extra vigilant.

"We're urging everyone to stay out of the water entirely on that western side of the island while conditions are hot and humid," he said.

"If anyone is stung on Fraser Island they should douse the area with vinegar as soon as possible and immediately call triple-0 to seek emergency medical assistance.

"We don't want to cause widespread panic, but it is really important for people to exercise caution and put safety first at all times. This includes taking a bottle of vinegar with you if you are heading to the island, to be prepared to treat a sting."

Mr Holden said SLSQ would continue to conduct daily stinger drags on the western side of Fraser Island, while informing campers and beachgoers in the area on the risks associated on entering the water and handing out marine stinger treatment information.