Go cold with it I did with line and it was easy. When I was really engorged I pumped for 3 minute but with a Manual pump. Just once and the engorgement was gone forever. Get him a chamomile tea and make for him in a sippy cup. This was worked for us
I would get a bottle that mimics the shape of the breast and put whatever breastmilk you can get from the pump and put it in there and or mix it with alittle cows milk.