What to do if I have a 4 day old infant, that I am breast and bottle feed. How can I completely empty the milk in my breast?

Breastfeeding. If you have enough milk to exclusively breast feed no bottle feeding is needed. In 15 minutes of sucking the baby will empty the breast. If he/she is satisfied with only nursing on one side you can pump the other side and freeze it for future use. Pumping does not completely empty the breast like the suction from a baby but a good pump will do ok.