About 2 months ago I had sex, unprotected. Around that time I developed this weird rash. It comes and goes through out the day when it starts to itch it gets really red on my scrotum, it seems to have traveled to my arm pits, and even my arms but does not itch on my arms, There is also a weird odor from my crotch that isn't that strong but it just smells different then it used to. The rash is just red on my skin no bumps or any thing, my arm is just red in different parts and my scrotum is red when it starts to itch and my groin is also redish / pink. My feet seem to also itch badly at the same time.