For over a month I have had a lump behing my left ear,on the edge of the bone.It does not hurt. I have been given rounds of antibiotics together lasting 11 days. The lump has gone down but its still there. I have in the past 4 days been having pain in my left breast. From the right side to the left side of the breast just above where the breast and chest meet. It hurst even when it is not being tuched. I did an exam with my right hand of the breast and can feel no fixed lumps. I have no discharge just pain. In the last week and a half I had flu like sysmtoms joint pain and 3 days of fever. The course of antibioticstioned mentioned above made the flu go away leaving me with a soar throat which went as well. The 1st doctor put me on Amoxycillin-cv625 for 6 days (to be taken twice a day) together with a antihistamine. The second Doctor put me on 5days of Erythromycin 500g (to be taken twice a day). All medications are done 4 days now. I now have the breast pain. HELP... What is this and how to make it go away?