"For years, the standard was to treat the umbilical cord with alcohol," says Debbie Thompson, a pediatric nurse-practitioner with Children's Medical Center, Dallas. Then a study in the Journal of Obstetric, Gynecologic, and Neonatal Nursing found that alcohol offers no benefit and that cords left alone fall off around two to three days sooner than those that are treated.
Quick Tips: Keep the cord stump clean and dry, but don't panic if it accidentally gets wet. Just dab it gently with a clean cloth. Fold the diaper down to prevent friction and increase airflow, and call your pediatrician if the cord develops an odor, becomes mushy, or is still on at three weeks.