A mysterious case in the UK.

Tommy Lynch from Derbyshire said he woke up looking like a character from "Avatar", writes the BBC.
A friend convinced him to go to the hospital, where concerned emergency department staff gave him oxygen. However, everything became clear when one of the medics wiped his arm with a swab that turned blue.
“I was very embarrassed, but they said I gave them a good laugh. There aren't usually funny stories in the emergency department,” said the 42-year-old man. Lynch was given a €30 bedding set in November.
He said that the next morning, when a friend noticed the blue tint to his skin, the friend insisted Lynch go immediately to the hospital's emergency department.

“Everyone in the emergency department's reception room looked at me as if they had seen a ghost,” he said.
“I was quickly taken inside, immediately put on oxygen and they started asking a lot of questions. At one point, there were about ten doctors around me,” Lynch said. “They started taking my blood, and as soon as they wiped my arm, the swab turned blue. And that’s when everything became clear. I said, ‘Oh my God, I’m so sorry,’” he added.
“I was treated wonderfully, but I was very embarrassed,” the man confessed.
After doctors confirmed he was fine, it took Lynch several days to completely wash the blue color off himself.
“People still looked at me strangely as I took bath after bath, but it took almost a week. The water was blue,” he said.

“The first thing I did when I got home was wash my sheets. I haven’t turned blue since then,” Lynch said.
“Always wash your sheets before sleeping on them. Unless you want to skip the queue at the emergency department,” he added.
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