Hiii when I do sex with my partner my penis as well as my partners vagina gets infection every time and she feels burning over there and my penis also the upper skin of my penis becomes very dry and it started itching it is like fungus happened on it and inside at the top there is a red rashes. I have a diabetes problem as well due to that it is happening. And even there is a stamina issue in which sometimes I am not able to satisfy my partner and my semen releases and after that also it does not erect for long time even if we try to get the erection of penis. Please help me.