You can try controlling oversupply by putting cabbage leaves in your bra.
1) Peel and wash leaves
2) Put in fridge for a bit
3) Put in bra cups for awhile and chuck it after use. Over use might reduce supply. So do it sparingly.
Sage leaves also help dries milk up.
1) Purchase sage herbs from supermarket
2) Soak 1 tsp of sage in hot water for a couple of minutes
3) Drink a few times a day. In addition to the danger of drying up your supply, be careful of allergies. I developed rashes, so i stopped and naturally dried my supply up instead.