How Can Breast Bruising Be Treated?

hi.. out of the blue i noticed that there is a small area (less than 1/2 inch) on my right breast where it appears like a bruise.. almost like a blod clot, but not exactly... it doesn't pain, and it is not lumpy. i am a mother of 17 month old baby and i breastfeed. i have never got such a condition before... can you please advise?