Treatment. According to Baidu Health Query, Xiaobugan Decoction is composed of cassia twig, dried ginger, Schisandra chinensis and jujube, which has the effects of warming the liver and dispelling cold, harmonizing the stomach and warming the uterus. Abdominal pain is mostly caused by body cold, deficiency of qi and blood or bad stomach, so Xiaobugan decoction has certain curative effect on abdominal pain.