Cheryl Cole has reportedly expressed concern about the state of her singing voice.

The 27-year-old lost her voice for five days earlier this month after contracting malaria and has said that she is afraid she may not be able to sing as well in the future, reports The Sun.

She is said to be drinking hot water with honey, cinnamon and lemon in the hope of repairing her vocal cords.

“Doctors have told her that it will come back, but she’s full of worry,” a source said.

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