I have a sore on the top of my penis, I mean on the head of the penis, and it s not on the skin, it s on the inside too. I saw a doctor and he gave medicine, but it didn t get better. Even though he has been using the medicine given by the doctor for a week, he has not been cured. Sir, I am very worried because of this. And which medicine good can you tell me i will use that medicine....