There is no particularly effective method for scars except skin plastic surgery. Even skin plastic surgery, the effect varies from person to person, not necessarily completely satisfactory. When the dermis is injured, there will be scars. At present, there is no particularly good method to treat scars. You can try to apply some ointments such as vitamin E cream, polysulfonate mucopolysaccharide cream, asiaticoside cream and allantoin cream to a certain extent, but most of them are not completely satisfied.