Hi! Five days ago I had a sharp pain in my left nipple. Then it turned into a burning sensation. The nipple itself hurts a lot when I touch it,or if my clothes brushes against it. Today I found a sort of pimple on my nipple, it s a bit red and a little shiny, and by tonight it is still sore and the pimple seems to be coming to a head ( there is a spot of yellow like a pimple that hasn t burst!) There is a tiny bit of dry skin around the swelling where the pimple is, but there is no discharge at all.