I.X.
Sounds like yeast to me and I've had a whopper of a case. I had zero luck with effective treatment with Dr.s but the laceration consultant saved the day. We used Genitan violet and its not easy to find. You need to treat baby and mom at the same time and wash all bedding, clothes, and bras in hot water. Kellymom.com is helpful on this subject. Don't go another way without seeing someone for diagnosis and treatment because the yeast can cause so much pain for you that you may be unable to continue feeding. It can take a good three days of treatment before you feel any relief from the pain and its likely to get worse before it gets better.