In the last month or so, it seems like every time my wife and I have sex, I develop a very itchy scrotum after about a day. This lasts a couple of days, and so far I have not treated it with anything. There are no aparent sores after examining myself this morning, but my scrotum is definetly red, although this may be the result of my scratching it last night in bed. My wife had an IUD implanted about a month ago, not sure if that may have anything to do with it. She is not on her period and to my knowledge is not having a yeast infection (I don't notice anything unusual or any unusual smells). Please help. This itching is driving me nuts!