The past four days I've experienced some swelling on the left side of the tip of my penis. It itches a little in the beginning but nothing extreme. No pain when I'm peeing. I now have this bump / scab. It doesn't hurt and I wouldn't even know it was there if it wasn't visible.
Is this herpes or could it be an injury from masterbating without lube or some other STD?
I went to get tested Thursday but I'm not able to see a doctor until Wednesday. Freaking out.