I've been in a relationship for just over two years now and neither my girlfriend or I have suffered from any sexual health problems. Recently, however, after going abroad for sometime I returned and we had sex. A day later this itchy rash appeared at the base of my penis. She told me that she'd been feeling itchy a few days earlier and afte visiting the GP was informed that it was probably antibiotics she was taking that were interfering with the pill and creating an environment where the fungus could flourish.
We've both been taking Canisten cream but it doesn't seem to be working. She's feeling even more itchy and now has sharp pains when she urinates and my rash is now spreading up my shaft to the head of my penis. Should I continue to use Canisten? Should I go to my GP and get checked out? Or is this something I should approach an STI clinic with?
Thanks in advance.