After sex contact, 4 days, the initial symptom was many small red blisters then turned into white and obsorbed and gone except a dull pain inside the penis remained by which Zinnat, cephalossporin 2th
generation for five days abated the pain but it came back. I have taken again it for longer time but this time the dull pain stayed there. I tried vibramycen doxycicline 100/100gm daily 7days and got even worst.