Mastitis

I was diagnosed with mastitis Sunday.. At first I was still able to exclusively breast feed, and now three days later my sons crying at the breast and not getting enough, I started supplementing with formula and while he takes that I've been pumping, every pumping session I've only been able to get 1 oz and that's both breasts combined.. Anyone have a decrease in milk production from mastitis and be able to come back from it? I'm so upset, I don't want to be giving him formula, and I don't want to have to stop breast feeding :(