Nipple crust please help !!

Eve

So I have had crust on my nipples for about a month or so now and I’m kinda starting to get worried I’m only 14 and there is no way I’m pregnant (I’m a virgin) . I don’t really want to pick the crust off because it just makes me cringe and really uncomfortable I don’t know if I should see a doctor about it or not or if there are ways it could maybe just fall off (I know that sounds really weird). There’s slightly more crust on my left nipple and it seems like it’s really stuck there, I don’t really think I have breast cancer because I don’t really have any symptoms such as lumps I do get really sore breasts once in a while but nothing else plus i don’t have a history of it in my family. I have told my mum and I’ve tried using baby oil to get it off but anyway I’m starting to get really worried and I kinda need help, so anything would be appreciated thanks xx