I have a couple patches of red dry spot on my penis shaft.. at first it started off as a shinny pink spot and after a few days turned into a dry scaly spot .. I started using yeast infection cream with no results , next I used a baby rash moisturizer and that also didn't work .. finally I used tee tree oil .. the tee tree took all the white scales completely off after the first use but now the spot has turned raw like if I had a bad carpet burn.. I'm sexually active with my girlfriend and her only for the past year .. before this I was tested for everything as was she ..what could this be and what can I do to rid it