Welcome to Health care magic. 1.Soreness in the breast the most possible cause could be mastitis - inflammation of the breast. In which no mammogram findings. 2.In this case sonomammo - ultrasound breast will help to evaluate the pathology - with features of oedematous , ductal dilatation. 3.Theretment will be hormonal treatment with a course of antibiotics. 4.Suggest you to get an appointment and needful investigations done. good luck. Hope it helps you. Wish you a good health. Anything to ask ? do not hesitate. Thank you.