Breastfeeding Momma's

Keturah
My daughter came 3 weeks early I had her 11/22 and she was due 12/14, but we're exclusively breastfeeding. We went to a lactation consultant this AM because at the initial latch it's that pitch that makes me go ouch! Then a couple seconds later the pain goes away. The consultant told me that she noticed baby girl had a callus on her top lip which made me feel a little bummed. She told me that I could put some cream on it to help soften it up. Any other mom's have that going on or can share some tips to help that go away?
Thank you in advance 😙