Lump on breast, possibly an infection ?

Get a hot wash cloth and apply hot compresses to it. (You can add salt to the water if you like) this will draw the infection out of it. (this is very common in that area) Breast Cancer is not painful, and does not hurt to the touch. Apply Neosporin to it, when you are done with the compresses. Yes, give it a week, it will take that long.