Michael Yarwood, 42, was at the beach in St Petersburg with his wife and two children when he felt a stab in his right foot while in the sea.
The excruciating pain left him staggering back to the beach and his wife wrapped his bleeding foot in a towel before they returned to their hotel.
According to the Daily Mail, Michael's foot was double the size by the next morning and he visited a walk-in centre where he was given a tetanus injection and antibiotics.
But Michael came down with a fever and was shaking uncontrollably. He was taken to hospital and doctors said he had been stabbed by a stingray with a poisonous barb in its tail.
Medics added that he had contracted a flesh-eating virus which had already killed 10 people in Florida this year.
The Sun reports that Michael spent five days on a drip in pain.
He managed to pull through and returned to Britain but is now walking with a stick and says he is lucky to be alive.
"I've had a lucky escape to be honest," he said. "I'm here to tell the tale. Maybe somebody else might not have done."