text: how do i treat a painful scratch on the outer part of my inner labia? should i use neosporin, diaper rash ointment, or something else? neosporin can not hurt. there is also a spray that is sold that helps aid in healing. the name of it escapes me right now. you can buy it at any pharmacy over the counter. it is given to women after childbirth to aid in healing of incisions.