Arisaema erubescens (commonly known as "white flower cobra lily") has a history of use in traditional medicine systems, particularly in Ayurveda and some folk practices in South Asia. The tuber of this plant is known as "Arisaema" or "Kandaghna" in Ayurvedic texts and is traditionally used for its anti-inflammatory, analgesic, and wound-healing properties. In the context of anal fistula or fissure, there are references in traditional Ayurvedic literature where Arisaema species are part of polyherbal formulations used to promote wound healing and reduce inflammation in anorectal disorders.

However, the evidence for the use of Arisaema erubescens specifically for anal fistula or fissure is mostly anecdotal or based on traditional formulations, rather than systematic scientific studies. There are no clinical trials or robust pharmacological studies directly supporting its efficacy for these conditions. Some laboratory studies have shown that extracts of Arisaema species possess anti-inflammatory and antimicrobial activities, which could theoretically be beneficial in such conditions, but these effects have not been conclusively demonstrated in the context of anal fistula or fissure, nor are they specific to Arisaema erubescens.

In summary, the use of Arisaema erubescens for anal fistula or fissure is supported mainly by traditional knowledge, with minimal scientific validation available to date. The level of evidence is therefore rated as low.