L.Z.
My daughter began biting me while nursing and this worked for my son as well, so it might just help with your daughter.
What I did was say in a stern voice while looking straight into her or his eyes, "You are hurting mommy. You are hurting mommy's body." (I added "and my feelings." when my son got older with hitting.) and then left him/he alone in the room in a safe place for a minute or less. A baby style time out. The separation from me physically worked wonders. They never cried or anything. They seemed a little surprised and just stopped the behavior after 3 or so times.
Also, I forgot to add that you need to show your baby how you like to be touched. Put your finger into the center of her palm to open her hand, and then gently take her by the wrist and have her stroke your face or shoulder gently while telling her in a very loving voice "Oh so nice, I love your soft hands. Gentle hands make mommy feel so good. etc." I'm sure you get the picture.
Good luck!