Brown Scab Like spot in nipple?

Rachel
Hey! First time Mom here, my baby girl is 3 days old! She has been latching like a dream with a few bumps here and there. But my left nipple is getting this brown line that's almost like a scab but not as rough. It does hurt for a few minutes if my boobs are full or if she just ate. Is this normal? It was smaller earlier and my lactation specialist said if it got too much worse to call her and come back in. But I want to see if there's a remedy I can do at home to subside the pain/heal it quick because I wouldn't be able to get an appointment for a few days. Any suggestions?