B.C.
If you are having sore nipples from feeding, some lanolin might help and there are some creams that are sold for that.
I would avoid scents while feeding. Besides not knowing how your baby will react to them or how they would taste, your natural scent and the smell of your milk is important to your baby. If you have to leave your child with a baby sitter for a little while, a cloth that you have worn next to your skin for a few hours will help your child be more calm because he can smell you.