Ginger has been used in traditional medicine for reducing inflammation. During the past 25 years, many laboratories have provided scientific support for the long-held belief that ginger contains constituents with anti-inflammatory properties. The original discovery of ginger's inhibitory effects on prostaglandin biosynthesis in the early 1970s has been repeatedly confirmed. Ginger is as effective as ibuprofen in relieving pain in women with primary dysmenorrhea, a study says.