Montgomery's Gland into Keloids That Still Pop Like Pimples? (photo)

The Montgomery's glands on my aureolas get "whiteheads" in them (not infected) since I hit puberty 10 yrs ago. Every 2 weeks, they "come to a head" w/ sebum(?), & I end up popping them; then the swelling subsides. Several turned into cysts that when popped left a keyloid. Now all the Montgomery's glands are raised & firm keyloids that still fill up w/ whitehead looking stuff that swell and decrease when popped. There's about 20 per breast. Will a topical corticosteroid help? If not, what?