Has your doctor made a culture of the infecting organism? If not,then it should be done so that a proper antibiotic treatment can be focused on the offending organism.
If the infection does not clear up after you have completed the antibiotics,the abscess should be lanced and drained.But if it doesn't clear up after this procedure,a wide excision of the infected area may help.
I would also advise you to consult a Breast Specialist who might recommend a few tests,including a Mammogram/Ultrasound to further investigate this problem.
Thank you so much! I'm just terrified of pain but will get a culture test done and consult a specialist too.