All of the studies included in this meta-analysis were published in Chinese databases, so we were unable to further investigate the methodological quality of these studies. Further research in other geographical regions is needed to support the use of Xiaofeng powder for treating chronic urticaria.

Xiaofeng powder is an herbal formula used as a remedy for urticaria in Traditional Chinese Medicine. It consists of Chinese angelica root (dang gui), Chinese foxglove (sheng di huang), siler (fang feng), cicada shell (chan tui), anemarrhena rhizome (zhi mu), sophora flavescens (ku shen), black sesame seed (hei zhi ma), Japanese catnip (jing jie), black atractylodes rhizome (cang zhu), burdock (niu bang zi), gypsum (shi gao), licorice root (gan cao), and akebia stem (mu tong).^[1]

Xiaofeng powder may be effective for urticaria Original paper