"I've been in tears all week," Kelly told "The Sun." "The infection is really low down in my throat."
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While there's no word yet on the type of infection, Kelly's rep confirmed that she is taking a break to tend to her health. "Kelly is devastated she won't be here for this weekend's show," her rep said in a statement on Friday. "She is extremely ill with a viral throat infection and her doctors aren't permitting her to fly."
According to "The Sun," Kelly began to feel ill last Sunday while traveling from the UK to LA. "I was on the plane and I got this weird scratchy feeling in my throat," said Kelly. "By the time I landed, I couldn't swallow."
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Kelly's condition grew so severe that doctors had to give her intravenous fluids.
"I've been on a drip, had injections of antibiotics and been drinking water non-stop. I even had a cortisone shot," Kelly said.
Hopefully Kelly is back up and at 'em for next weekend's show.