I have just had my fourth battle with this which I managed to clear without antibiotics.
Tenderness has finally gone but my affected breast feels odd where the problem was. There is a largish area of rubbery tissue remaining. It doesn't feel dodgy but it is definitely different from the same side of the other breast... Kind of higher. It's about the size of two or three fifty pence pieces.
I'm off to GP tomorrow but they seem shit at these things....