A medical worker puts plaster pieces onto the back of a man during a traditional Chinese medicine treatment in a hospital in Lianyungang, East China's Jiangsu province on July 24, 2011. According to Chinese medical theory, in the hottest days of summer, cupping and plaster therapy, applied to strategic points on the body, can help combat common winter ailments. This year, July 24 is considered the first day of the second ten-day period of hottest days in summer. [Photo/Xinhua]