hi. noted history of hematoma on the left breast secondary to trauma, decreasing in size but still not fully recoverd after 2 months time. it is best if you consult with a doctor, preferably a general surgeon, for physical examination and clinical evaluation. i recommend breast ultrasound for further investigation, even if decreased in swelling is observed, to further investigate the character of the lesion inside the breast. management (medical and/or surgical if indications are found) will be directed accordingly. lukewarm compress over the affected site may also help decrease the size of the hematoma formation. hope this helps. good day!! ~dr.kaye