Wow,  My grandaughter had the same thing.  I remember years (50) ago, we had a dog that was going to have a litter of puppies.  I remember my Grandmother putting Campho on the dogs nipples. Well sure enough the nipples improved and after 3 weeks they popped out. Nipples were just fine.  Then just a few years ago my daughter-in-law came to me asking if I knew what to to for Inverted Nipples? Her daughter, My Grandaughter had the inverted Nipples and was very embarassed. I told her the story of the dog.  The Daughter-in-law bought the campho and the Grandaughter tried it. well about 5 -6 weeks things started to change. The nipples popped out to look normal.  Campho is also good for Head Lice. Smells bad but it works.

Good Luck

Irishgurl