Ashen nail

Also goose-claw wind; oily ashen nail. A disease of the fingers and toes that starts with itching around the nail and that deprives the nail of nourishment of the blood, causing it gradually to thicken, loose its luster, take on an ashen appearance, and eventually to crumble and become deformed. Ashen nail can be treated by soaking in Vinegar Soaking Formula (醋泡方 cù pào fāng) or applying pig’s bile or crushed fresh garden balsam flower (Impatientis Balsaminae Flos, 凤仙花 fèng xiān huā). Compare also goose-foot wind.