Spreading Bright White Follicles With Hard Raised Lump, Filled With White Paste On Base Of Penis. No Pain. Suggest

Hi, for many years I've had 4-5 follicles at the base of my penis that are bright white in colour. One of them is a hard raised lump about 1.5 mm in diameter. When pinching the skin of the effected area I can feel a solid round lump of a proportionate size beneath the skin at these sites. They all regularly fill with a white paste that doesn't seem to be pus. It excretes readily when pressure is applied but always refill within a day or two. They've started to spread further up the shaft and while they may not be painful or medically dangerous, they're a serious cosmetic concern.