I have a risen lump towards the bottom of the shaft of my penis. It originally had puss in it and i tried getting rid of it early. I squeezed it and got as much out as i could but since then (about a month or two ago) it's just a small purple/red lump of the same size as original (around 2 milimetres) and there is no chance of it pussing or bleeding when squeezed. Advice? Should i pop it with a needle maybe?