Life savers have closed beaches on the Gold and Sunshine coasts with thousands of people stung by bluebottles.
More than 2500 people have been treated for bluebottle stings on the Gold and Sunshine coasts in Queensland as the jellyfish swarm beaches in record numbers.
Across the weekend, more than 2630 people have been stung with several suffering anaphylactic shock and treated by paramedics.
Almost 1000 people were hurt in a matter of hours on Sunday afternoon, with 476 bluebottle stings treated on the Gold Coast and 461 on the Sunshine Coast.
Surf Life Saving duty officer Jeremy Sturges said it was an "epidemic".
"I have never seen anything like this - ever," Mr Sturges said.
"Not everyone reacts the same way but there have been very serious reactions."
Unusually strong northeasterly swell conditions pushed the bluebottles onshore and they are clumped in their thousands along the shoreline.
Lifesavers have been forced to close a number of beaches with 476 people treated on the Gold Coast and 461 on the Sunshine Coast.
Mr Sturges warned it was not just swimmers at risk with the jellyfish stranded along the tide lines still very much alive.
"People have been hurt as they just walk along the shoreline. Don't pick it up, don't walk on it or you will be stung."
Surf Life Saving Queensland said that if stung, remove stingers, take a very hot shower and apply ice.