A doctor sticks the Sanfu Paste on a boy in the People's Hospital in Runan County in Zhumadian City, central China's Henan Province, July 13, 2015. The Sanfu Paste, also known as dog-days paste, is a traditional Chinese medicine treatment. During the treatment, patients will be stuck with the Chinese medicine contained in the paste on acupoints during the dog days, the hottest and most sultry days of summer. This treatment is regarded to be able to cure such chronic diseases like asthma. Monday is the first day of dog days and hospitals are crammed with citizens for the Sanfu Paste. (Xinhua/Sun Kai)