Debbie, It would be more helpful if the mother began double pumping less frequently to lessen her supply, rather than jumping to one sided pumping every six hours. This could result in severe engorgement and set her up for a breast infection. If she is now pumping 2-4 hourly, suggest three hourly and see how that goes. She may need an explanation of supply-demand. I wonder how long she is pumping at each session - that is a factor also. I would avoid cabbage leaves at this stage because they have the potential to diminish the milk supply too much if used for too long. This mother sounds over-zealous and may think that longer is better. Hope this helps. Beverley Rae, MSW CSW IBCLC Manhasset, NY