If a nail is scratched on the face, if it does not damage the dermis, it will not leave a scar. If the dermis is damaged, it usually shows a reaction of bleeding of the skin, and it may leave a scar. Once there is bleeding, it needs to be treated with some medication in time to be able to prevent scarring to the maximum extent. Generally, in the early stage, you can use rehabilitation new liquid topical spray, and you can also use mucopolysaccharide polysulfate cream topical application. If the scar has just formed, you can also use sodium heparin allantoin cream topical application, or use Bacitracin can be used. If the nail is scratched and there is no bleeding reaction, it is generally not necessary to use scar removal ointment, and it is sufficient to directly use the topical spray of rehabilitation new liquid to prevent secondary infection.