Siler root (Saposhnikovia divaricata), known as Fang Feng in traditional Chinese medicine (TCM), has been used for centuries primarily as a remedy for "wind" conditions, including skin disorders. In the context of abrasions—minor superficial injuries to the skin—traditional texts describe Fang Feng as dispelling wind and dampness, and sometimes cite its use in external applications for various skin lesions, including ulcers and wounds. However, the evidence supporting the use of Siler root specifically for abrasions is based largely on historical and anecdotal accounts rather than modern scientific validation.

The root is believed in TCM to have anti-inflammatory and antimicrobial properties, which would theoretically help prevent infection and promote healing in minor wounds and abrasions. Some preclinical studies have identified anti-inflammatory and antioxidant compounds in Siler root, but these studies do not directly address wound healing or abrasion management in humans. There are few, if any, controlled clinical trials assessing its efficacy for treating abrasions.

In summary, the use of Siler root for abrasions is justified primarily by traditional use rather than scientific evidence. While its historical application in TCM is well documented, modern scientific studies validating its effectiveness for this specific indication are lacking.