Whiteweed (Ageratum conyzoides) has a long history of use in traditional medicine systems across Africa, Asia, and South America, particularly for treating wounds, cuts, and abrasions. Ethnobotanical records document that communities have applied poultices or infusions of the plant directly to the skin to promote healing, reduce inflammation, and prevent infection. The traditional rationale is based on the observed antimicrobial and anti-inflammatory effects, as well as its reported ability to promote tissue regeneration.

Scientific studies investigating the efficacy of Ageratum conyzoides for wound healing are limited, but a few in vitro and animal studies suggest that extracts of the plant possess antibacterial and anti-inflammatory properties. However, robust clinical evidence in humans is lacking, and the available studies often lack rigorous controls or sufficient sample sizes. No major clinical guidelines recognize Whiteweed as an approved treatment for abrasions.

In summary, the use of Whiteweed for abrasions is supported primarily by traditional knowledge, with some preliminary scientific findings suggesting possible benefit. However, the overall evidence is weak and does not meet modern standards for clinical validation.