Hi, my partner has been complaining of a sore vagina for about a week, she often gets this and we have no problems, but We had sex a few days ago and suddenly my penis is itchy, red and sore. It s not an STD as we are both loyal partners. Just strange that when she has been sore before but we have had sex it s been ok, but this time I appear to have pucked up whatever she has that is making her sore. How can I make my penis better? It is very sore.