Nipples are crusty, with yellowish brownish chunks?????

Maibis
Help! My nipples look like they are breaking. They have yellowish brownish chunks. I have tried to pick at them and I'm able to pick off the chunks but it is uncomfortable. I have tried using earth mammas nipple butter and I tried lansoih one time too and I didn't see any difference. Please help? Did anyone have the same problem? What should I do?