If it is due to breastmilk jaundice, you do not have to stop breastfeeding as breastmilk jaundice is not harmful and normally takes longer to clear it. My daugther's jaundice lasted for about 8 weeks. PD did a liver test on her to rule out any liver associated illness and it is confirmed that jaundice was related to breastmilk. Do nurse more frequently for baby to clear jaundice.