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NEW YORK (AP) -- A New Jersey man claims an insomnia cure promoted on The Dr. Oz Show left third-degree burns on his feet.

Frank Dietl, of Southampton, N.J., filed a lawsuit in Manhattan state Supreme Court.

The Daily News says Dietl was confined to his bed for weeks after using the so-called knap-sack heated rice footsie.

It was promoted on April 17, 2012.

Oz recommended filling a pair of socks with uncooked rice and warming them up in a microwave oven and putting them on.

The popular cardiothoracic surgeon said leaving them on for 20 minutes would promote better sleep.

He warned not to get the socks too hot.

The Dr. Oz Show said it couldn't comment until it could review the lawsuit.

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