Relactate

I don't know if this helps, I'm a over supply mummy but due to infection my supply drop tremendously like ending soon. what I did was lots of skin to skin nursing and pumping my supply did came back after 2 weeks. no longer over supply but just nice for my baby compared to previously. you might want to try

https://sg.theasianparent.com/how-to-increase-breast-milk-supply