Bitten my nipple 😩

My daughter at 4 am yesterday bit down on my nipple with her two teeth. I immediately yelled ow! It felt like two razor blades and started bleeding. I can’t even feed on that side now it feels like she’s still cutting me because it keep reopening.

Of course it was on my over supply side so I’m already clogged and have pumped twice sense then to try and get it all out but it’s already rock hard. How can I help it heal and how else can I make sure that sides drained without feeding her from it?? Pumping just isn’t doing enough