How to Boost breastmilk supply

FTM here, after birth my milk supply was doing good. 1pump could get up to 200+mls (both breast) but now i can only get max of 100mls and that is only base on luck. Average would be 30mls. I am breastfeeding but i put my son at my mom's house for a night and from there my milk starts to decrease rapidly. Been drinking mama's choice milk booster but it doesnt seem to be enough. Any other suggestions on what should i do or consume ?