All I did was keep offering and on the 7th day he just started to nurse again! He was only nursing at bedtime up until then & he refused to take expressed milk from cup or bottle; during the day the only liquid he would drink was water. Once he would catch a whiff of breastmilk in a cup or bottle he would push it away so I stopped offering it that way because it would just make him really mad! I did try formula from a cup, but the first sip he gagged on it & refused it after that. He is a determined little guy! So otherthan just continuely offering the boob I didn't do anything he just decided he should nurse again! At the moment he's sometimes refusing to eat at some of the feeds, mostly the 11am feed so I'm wondering if he may be ready to switch to a 5 hr routine. Sorry for the late reply haven't been on in a while!