What to do when a child has rashes?

Use plain water to clean the rash area. Don’t use soap or diaper wipes, as they could be irritating. Dry the child’s bottom completely before putting on fresh nappies/panties. Use an extra-absorbent liner inside the diapers. Apply petroleum jelly or any diaper ointment on the area. Do not use plastic panties over nappies until the rash has disappeared. They will prevent air circulation around your baby’s bottom and delay the healing process.
Try to leave the child without diapers for as long as possible in a day. If the rash is slight, just air-drying would cure it in no time.