Uneven Supply

What do you do for uneven supply? I started out breastfeeding fine. I had an oversupply that turned into clogged ducts and mastitis by week 3. I fed through the infection, but it killed my supply on the infected side. Ever since then, I have not been able to rebuild the supply after 3 weeks of trying. I'll pump 2 oz out of the left and only .25 oz out of the right. It's at the point now where you can visually see my breasts are 2 different sizes.

I've tried always starting the feeds on the lazy side and pumping a little longer on that side but it hasnt helped. It's also not helping that baby prefers the left now because the milk flows easier on that side.

Any suggestions to try to even things out and increase supply on the one side would be appreciated!