Pellitory-of-the-wall (Parietaria officinalis) has a long history of use in traditional herbal medicine, particularly in Europe. Its use for minor wounds, scratches, and abrasions is primarily based on this traditional knowledge rather than robust scientific validation. Historical herbal texts, such as those by Gerard and Culpeper, reference its application as a poultice or wash for skin irritations and minor injuries. These sources describe the plant as having soothing and mild astringent properties, which may help to calm inflammation and support the healing of superficial wounds.

However, there is a lack of well-designed clinical trials or modern pharmacological studies specifically evaluating Pellitory-of-the-wall for skin healing or wound care. Most of the contemporary literature focuses on its use for urinary and respiratory conditions. Some phytochemical studies have identified flavonoids and other compounds with potential anti-inflammatory or antioxidant effects, but these findings have not been directly linked to efficacy in treating scratches or abrasions.

In summary, the use of Pellitory-of-the-wall for scratches and abrasions is rooted in traditional herbal practice, with limited to no scientific evidence supporting its effectiveness for this indication. As such, this use should be considered as supplementary folk medicine rather than a validated therapeutic approach.