( CM ) - AMY WINEHOUSE has quashed rumours she was involved in a fight - putting her bruised and swollen face down to a mystery skin infection. The star fuelled speculation she may have suffered a blow to the cheek after she was photographed on Friday (29Feb08) with a painful-looking swelling on the side of her face. But Winehouse's official spokesman insists the singer has come down with a mystery illness and is seeking medical help. He tells British newspaper the Daily Star, "Amy has a skin infection which is why her face looks the way it does. At this stage she has no idea what it is but she's getting to a doctor to try and identify the problem. "She's not in any pain but, obviously, she wants to get it sorted as soon as possible."