Start supplementing with a bottle or a cup of juice every other nursing. Your breasts will feel full and tight at first. Watch that they don't get hot to touch or feel painful, which would be a sign of milk fever. But as your child nurses less, you produce less. The less your child nurses, the less you produce. Eventually, your child will prefer the cup over the breast when he is hungry, because it comes out much faster. He will only want to nurse when he needs the physical comfort. For that, you will have to decide if you'd rather offer him a pacifier, a bottle, or let him just learn to deal with it.
While you are trying to "dry up", make sure you drink plenty of water. Don't think, cut back on fluids and you'll produce less. Your production is directly related to how much your child nurses. If you need more milk, nurse more. If you need less, nurse less.
at 11:17 PM on Jun. 30, 2011