mastitis and milk supply

My right boob doesn't produce nearly as much as my left. Usually 1.5 oz on right and 4 oz on left. At 6 weeks pp I got mastitis on the right side and with antibiotics and constant nursing/pumping I went back to normal the next day. Now at 8 weeks pp I have mastitis on the left. All the symptoms are gone except soreness but my left is producing 1.5oz at most and I'm nursing/pumping for at least 20 minutes and massaging as I nurse/pump etc but it's been 3 days and my supply hasn't returned. Thankfully I had milk frozen because baby eats at least 4oz every time. Will my supply return? Anyone have experience with this?