I have a sore on my right breast. It is lower right side. It is slightly larger then dime. It sometimes looks like a bruise but then It  gets a yellowish head on it, and then (i know I shouldnt squeeze it but I do) a yellowship thick dishcharge comes out. I have put neosporin on it but it will not heal... my breast feels heavy and hot to me.
HiT his sounds like a staph infection and topical antibiotic cream isn't enough for it. You need to see a doctor for a course of antibiotics like Septa DS