Question about small bump
On the left side of my penis, approx in the middle of my shaft, i had a white pimple which i thought at first was an ingrown hair. After a while, it did not go away. I was worried it could be a sign of an STD or some other type of disease, although i never have had unprotected sex or any complications at all. It was about the size of the tip of a ballpoint pen and it looked like a zit or a white head. I popped it and it of course oozed and then bled for a few seconds till i pushed everything out. It then swelled up the area for a little while and it is now like a small scab...what was it and will it heal and go away? Please help me with this, im somewhat worried. Thank you.