STD Penis discoloration

Patient: My husband says he has not had sex with anyone, he always hide himself one day I looked at him and his penis was red and looked raw. He had been using itch creams and witch hazel, alcohol and other ointments, says it been like that for a while. What do he have and how do I know if I have anything?

Symptoms: Red, raw penis, (dark skin guy)

Doctor: