It was a very small one, hardly visible, so I didn't do much about it. I went to the doctor again 2 months ago and he suggested to use Aldara
on it because he didn't keep a nitro gun. I had been using it for about 2 months when I developed this sore on my penis, size of a quater, but not round. There were no blisters but just a sore as if the skin had been peeled off. It was slightly weepy, pink, shiny and had white pus like formation/skin on it.