At the end of April, the line returned in the same spot, and was longer, wrapping around the left and right side of my penis, still underneath the glans. I returned to the doctor and she told me it was a
yeast infection and gave me ketoconazole cream 2%. I used this for a week and at the end of the week the red line had crusted over, but not gone away.
A few weeks later the crust flaked off, and the line was still there, in addition to a small cut about mid penis.