Losing milk supply from mastitis

I had mastitis and multiple blocked ducts in my left breast 5 days PP, and I ended up completely losing all my milk on the left side.

2 weeks later, I’m exclusively pumping my right side, and I have blocked ducts and mastitis again in my right side. I’m starting antibiotics today but I’ve already noticed a huge decrease in how much I’m pumping.

What can I do to make sure I don’t lose my milk supply again in my right side!? I’m already having to supplement with formula because my baby has such a big appetite that one boob just doesn’t do the job, but I wanna make sure he’s getting at least some breast milk 😫