Moxibustion — which involves heating different areas of the body with burning mugwort leaves — was found in one meta-analysis to be superior to medication for improving bloating and bowel movement frequency in IBS-D, but with a high risk of bias due to the lack of blinding in nearly all studies.[1] Tong Xie Yao Fang, a traditional Chinese medicine formula, was also reported to be superior to conventional treatment in another meta-analysis that also cited a high risk of bias due to the lack of blinding and randomization.[2] Shugan Jianpi Zhixie (an ingredient of Tong Xie Yao Fang) was more effective than placebo according to one meta-analysis that only included randomized, double-blind, placebo-controlled trials, but it wasn’t compared to conventional treatment.[3]