What supplements help increase milk supply?

Bex • Life...uh...finds a way 🦖

I'm 6 weeks PP and pump/supplement with formula. Within the last 2 weeks, my supply has tanked and I'm struggling to regain any of it back so I'm looking at supplements as my last resort or I'll have to stop pumping altogether at this point. I used to get up to 190ml in a 20-minute session and now I get 60ml or less. I've already seen a lactation consultant and gave me a hospital grade pump to try thinking my current Spectra pump is the problem by not emptying me along with different sized flanges, but the amount I get out is the same regardless of the pump I use. Now, my nipples are chewed up because the damn suction on the hospital pump is so strong. Tried coconut oil and lanolin, doesn't help. I went to my OB because I had a low grade fever and hot lumps; thinking start of mastitis in both breasts so I was put on antibiotics for 10 days. It hurts so bad to pump and the pain lingers for hours.

So at this point, infection has been ruled out, tried lube in the flanges, different pump, larger flanges, pumping every 3 hours, drinking body armor and Gatorade, lactation tea, no bakes with brewer's yeast, massaging, applying heat, playing with the settings on both pumps. I'm at a dumbfounded loss here.