How should I care for my newborn’s umbilical cord? How should I clean it? And when will it fall off?

Our paediatrician's instructions were to make sure it wouldn't get wet, just swab around it with a cotton bud soaked in alcohol (the alcohol should not have moisturiser), and just wait for the scab to come off naturally. This happened for us within the first month.

Before I was discharged from the hospital, the nurses gave a brief lesson on cleaning the cord. Use warm boiled/filtered water + cotton ball and gently wipe around the area. Strictly no need to use soap. It will naturally fall out on its own.

I just wiped the area around the cord with cool boiled water and a cloth. I didn't use alcohol or cord spirit. My daughter's cord fell off on her 4th day.

The nurses at KKH told me to cotton swab with luke warm water during shower. My daughter's umbilical cord fell off within 3 weeks.

thanks