Gently clean the area with mild soap and water (wipes sometimes can be irritating), then apply a very thick layer of diaper rash or «barrier» cream. (kidshealth.org)
Since your baby is crawling, and maybe even pulling himself up to stand, you're more conscious of cleaning areas of your home that you may have neglected for a while. (health-and-parenting.com)
After thoroughly cleaning the area where she has been eliminating, put tin foil or double - sided tape over the area. (cat-lovers-only.com)