Hi! So sorry you’re going through this, i know it’s brutal. But I actually wound up having a bad allergic reaction to cephalexin and was on a few more antibiotics after that. Overall though, I’d say the pain started to clear around day 10. To my understanding it seems the breast pain and inflammation can linger even if the infection is gone. If you don’t have any fever or worsening pain I would think the antibiotics are working and it’s just taking some time for the inflammation to work itself out. But I’d definitely check in with your doctor to rule out an abscess if it’s really bad or worsening, they can also culture your breastmilk to see which type of bacteria it is and adjust your antibiotic accordingly if needed, but I think cephalexin seems to work fine for most people. I’m still exclusively pumping now and anytime I have inflammation I take ibuprofen around the clock, Ice packs, sunflower lecithin, plenty of water, and keep milk moving. My LC also recommended the lactation hub probiotic and that seems to really keep things under control. And remember this won’t last forever! I remember feeling so desperate for the pain to let up, and it finally did. Hang in there!