Build up on nipple

Hi Mummies, I am 36 weeks pregnant and just realised that what I thought is my pregnancy nipple now is peelable and the tip has build ups which can be 'plucked out'. Is this normal? Also, I don't know to which extend I can remove the buildup but it seems like I can keep peeling the tip of my nipple as its very dried up. #1stimemom #firstbaby #advicepls #pregnancy