London, February 9 (AI): Amy Winehouse has mended her havoc-wreaking ways, and is relying upon pricey beauty treatments to reverse damage caused by her drug addiction, as per the manager of a posh Caribbean resort.

The 'rehab' hit maker, who has been soaking up the sun in Le Sport spa hotel in St. Lucia since December, had vowed to make a fresh start in 2009, including getting rid off her drug and alcohol addiction.

And according to manager Andrew Barnard, the singer had been treating herself in the hotel's skin clinic or spa every day and was showing results.

"We had Amy on a diet and exercise programme as she really wasn't well when she came to us," the Daily Star quoted him as saying.

"But now she's mentally and physically stronger. She's had lots of treatments too and is really looking good," he added.

Amy had previously been reported as a guest from hell following her drunken cavorting and crazy antics at the hotel, including crawling up to other holidaymakers and grabbing their drinks after fed-up resort staff refused to serve her.

She also got herself nearly charged with assault after she threw a glass of water at a woman tourist.

But Barnard insisted it is all passé now, adding: "At the beginning Amy was a difficult guest but she's actually quite charming." (ANI)