Hi, I'm a 17 year old female. And the past 2 weeks or so my nipples have been irritated and yellow scabs formed on them left one is worse than right.

I have eczema I thought I must have scratched my nipple or something and it caused skin to come off. But when the scabs fall off it doesn't seem like they are healing at all. I've noticed that sometimes there's yellowish stains in my bra... I don't know, it's embarrassing to go tell my mum. 

Is it just eczema or do I have something to worry about.. 

Thanks